English words: semi-official to semicolloquial

300 English words, part 54 of 245 of the words starting with S, A to Z. 9 have a page of their own.

English words semi-official to semicolloquial

semi-official adjective: Having some degree of official authority.
semi-open file noun: A half-open file.
semi-open game noun: A type of chess opening, in which White plays 1.e4 (moves their king's pawn to the fourth rank with their first move) and Black breaks symmetry by replying...
semi-orb noun: hemisphere
semi-palindrome noun: A word or phrase that forms a different word or phrase when its letters are reversed.
semi-paralyzed adjective: Partially paralyzed.
semi-parliamentary adjective: Alternative form of semiparliamentary.
semi-patriotic adjective: Alternative form of semipatriotic.
Semi-pelagianism noun: Alternative form of Semipelagianism.
semi-pelagic adjective: Alternative spelling of semipelagic.
semi-period noun: Half of the period of a wave etc; typically the time taken for part of a wave to be replaced by a similar part that is out of phase.
semi-permanent adjective: Alternative form of semipermanent.
semi-permanently adverb /sɛmiˈpɜːmənəntli/: Alternative form of semipermanently.
semi-pissed adjective: Somewhat or partially pissed.
semi-planned adjective: Partially planned.
semi-positive adjective: Alternative form of semipositive.
semi-postal adjective: Alternative form of semipostal
semi-postal stamp noun: A postage stamp which includes a premium for charitable causes in addition to the charge for postal service.
semi-precious adjective: Somewhat precious or valuable.
semi-presidential adjective: Alternative form of semipresidential.
semi-pro adjective, noun: Alternative form of semipro.
semi-professional adjective, noun: playing for pay on a part-time basis
semi-profile noun: The position (of the subject of a photograph or portrait) of being partly in profile, but partly turned away from the side.
semi-proletariat noun: Alternative form of semiproletariat.
semi-protected adjective: Alternative form of semiprotected.
semi-quote noun, verb: A single quotation mark, ('). This is often used for a quote within a quote, as in "Tom said 'What?'"
semi-random adjective: Alternative form of semirandom.
semi-reflexive adjective: Alternative form of semireflexive.
semi-regular adjective: Alternative spelling of semiregular.
semi-responsible adjective: Alternative form of semiresponsible.
semi-retirement noun: Alternative form of semiretirement.
semi rig noun: A tractor-trailer
semi-rigid adjective: Alternative spelling of semirigid.
semi-riparian adjective: Alternative spelling of semiriparian.
semi-rural adjective: Alternative form of semirural.
Semi-Saxon adjective: Relating to Late Old English and early Middle English, the form of the English language belonging to the period from 1100 to either c. 1200, 1230, or 1250...
semi-sexist adjective: Somewhat sexist.
semi-shipper noun: A person who partially supports a ship.
semi-single adjective: More or less single; not in a serious long-term romantic or sexual relationship.
semi-skilled adjective: Alternative form of semiskilled.
semi-skimmed adjective: of milk, from which about half of the cream has been removed
semi-skimmed milk noun: Milk from which about half of the cream has been removed.
semi-smile noun: A faint smile.
semi-soft adjective: Alternative spelling of semisoft.
semi-solid adjective, noun /ˌsɛm.iːˈsɒl.ɪd/: Half-solid, extremely viscous.
semi-solus adjective: Appearing on the same page as other advertisements, but not alongside them.
semi-somnolent adjective: Alternative form of semisomnolent.
semi-spherical adjective: Alternative form of semispherical.
semi-state adjective: state-owned but managed independently along commercial lines
semi-streamlined adjective: Only partially, not fully streamlined.
semi-sub noun: Alternative form of semisub.
semi-submarine noun: Alternative form of semisubmarine
semi-submersible adjective, noun: that can be partially submerged; usually relating to offshore drilling platforms and associated vessels.
semi-supination noun: Alternative form of semisupination.
semi-supine adjective: Alternative form of semisupine.
semi-sweet adjective: Alternative spelling of semisweet.
semi-syllabary noun: Alternative form of semisyllabary.
semi-syllabic adjective: Alternative form of semisyllabic.
semi-tatsama noun: A semi-learned borrowing from Sanskrit.
semi-totalistic adjective: Alternative form of semitotalistic.
semi-tractor noun: The tractor component of a semi-trailer truck or articulated lorry.
semi-trailer noun: A trailer without front axle and with wheels only at the trailing end, designed to be pulled via a pivoting arrangement which also partially supports its...
semi-trailer truck noun: Synonym of tractor-trailer: a unit consisting of a semi-trailer and a tractor (heavy-duty truck) pulling it.
semi-trailing adjective: Having stems thick enough to stand somewhat erect, but eventually drooping like a vine.
semi-transitive adjective: Such that there exists a finite vertex set so that for any vertex there exists another vertex in that finite set and an injective homomorphism of the graph...
semi-transparent adjective: Alternative spelling of semitransparent.
semi truck noun: An 18-wheeler.
semi-Tychonic adjective: Approximating the Tychonic system of astronomy.
semi-uncial adjective: Being or relating to a form of script that resembles a cut-down version of uncial, used from around the 3rd to the 8th century.
semi-uniform adjective, noun: Alternative spelling of semiuniform.
semi-vegetarian adjective, noun /ˌsɛmiˌvɛd͡ʒɪˈtɛəɹi.ən/: Alternative spelling of semivegetarian.
semi-vegetarianism noun: Alternative spelling of semivegetarianism.
semi-voiced adjective: Of consonants, formed by making a voiced consonant, but with the vocal folds closed.
semi-vowel noun: Alternative form of semivowel.
semi-weekly adjective, adverb, noun: Occurring twice a week; occurring once every one-half a week
semi-width noun: Alternative form of semiwidth.
semi-wild adjective: Alternative form of semiwild.
semi-works noun: A manufacturing plant large enough to produce market development quantities, but smaller than a full-scale commercial plant.
semi-yearly adjective: Alternative spelling of semiyearly.
semi-zero grazing noun: A form of grazing in which cattle are kept in enclosures some of the time and allowed outside to graze at other times.
semiabandoned adjective: Not completely abandoned, but neglected or rarely visited.
semiabstract adjective: Not entirely abstract; between abstract and concrete
semiabstraction noun: semiabstract artwork
semiaccidentally adverb: In a manner that is partly accidental.
semiacetal noun: Hemiacetal.
semiacid adjective, noun: Slightly acid; semiacidic.
semiacoustic adjective: Having a soundbox as well as one or more electric pickups.
semiacquaintance noun: A vague acquaintance; a person whom one barely knows.
semiactive adjective: Alternative form of semi-active.
semiactively adverb: In a semiactive manner
semiacyclic adjective: Having no ascending cycles
semiadherent adjective: partly adherent
semiadjunction noun: The adjunction of a semifunctor.
semiadjustable adjective: Partly adjustable.
semiadnate adjective: Somewhat or partly adnate.
semiaerobic adjective: Partially aerobic
semiaerobically adverb: In a semiaerobic manner
semiaffordable adjective: Expensive but affordable if one stretches one's resources.
semiagricultural adjective: Partly agricultural.
Semiahmoo noun: A Coast Salish indigenous people whose homeland is in the Lower Mainland region of southwestern British Columbia, Canada.
semialdehyde noun: The monoaldehyde of a dicarboxylic acid; those of some amino acids are intermediates in biosynthesis
semialgebra noun: A class that is closed under intersection and semiclosed under set difference
semialgebraic adjective: Describing any algebraic system in which only real roots are investigated.
semialgorithm noun: Alternative form of semi-algorithm.
semialien adjective: Somewhat or partly alien.
semiallogeneic adjective: Partially allogeneic, i.e. sharing some, but not all genes.
semiallograft noun: A transplant, half of whose genes come from another individual (e.g. from a father)
semialpine adjective: Somewhat or partly alpine.
semialtricial adjective: Somewhat altricial (and somewhat precocial)
semiamphibious adjective: Of a vehicle: having limited amphibious capability.
semiample noun: Having a positive multiple that is generated by global sections.
semiampleness noun: The quality of being semiample.
semiamplexicaul adjective: Partially amplexicaul; embracing the stem half or partly round.
semiamplitude noun: The amplitude of a wave equal to half of that from peak to peak.
semiamusing adjective: Somewhat or partially amusing.
semianaerobic adjective: Partially anaerobic
semianaerobically adverb: In a semianaerobic manner.
semianalytic adjective: Having some analytic characteristics
semianalytical adjective: Partially analytical
semianarchist adjective: Holding or characterized by positions typical of or similar to anarchism without being fully anarchist.
semianatomical adjective: Somewhat or partly anatomical.
semianatropal adjective: Synonym of amphitropous.
semianatropous adjective: Synonym of amphitropous.
semianechoic adjective: Being a kind of anechoic chamber with a solid floor to support objects, rather than the mesh floor grille over absorbent tiles found in full anechoic chambers.
semiangle noun: an angle of half a given size
semiangry adjective: Alternative spelling of semi-angry.
semianimal adjective: Half or partly animal.
semianimate adjective: Partly, but not truly or wholly, alive.
semiannual adjective, noun: Biannual: occurring twice a year
semiannually adverb: In a semiannual manner, twice yearly.
semiannular adjective: Having a shape resembling part of a ring or incomplete circular band.
semianthracite noun: Coal that is intermediate between anthracite and semibituminous coal.
semiape noun: Alternative form of semi-ape.
semiapocryphal adjective: Partly apocryphal.
semiapologetic adjective: Somewhat apologetic.
semiapologetically adverb: In a semiapologetic manner.
semiappressed adjective: Somewhat or partially appressed.
semiaquatic adjective: Spending part of the life cycle underwater. Also, spending a significant proportion of its time in both terrestrial and aquatic environments.
semiaquatically adverb: In a semiaquatic manner.
semiarboreal adjective: Of a creature, which sometimes dwells in trees.
semiarborescent adjective: Somewhat or partly arborescent.
semiarc noun: half of an arc
semiarch noun: Half of an arch.
semiarchitectural adjective: Somewhat or partly architectural.
semiarid adjective: Somewhat arid, receiving little rainfall but more than an arid area would, typically defined as 25 to 50 cm of rainfall annually.
semiaridity noun: The quality of being semiarid.
semiaromatic adjective: Partially aromatic (and partially aliphatic or alicyclic)
semiarticulate adjective: Somewhat or partly articulate.
semiarticulated adjective: Partly articulated.
semiartificial adjective: Partly or somewhat artificial.
semiartinian adjective: Of a module _RM: such that, for every M→N epimorphism, where N≠0, the socle of N is essential in N.
semiasphaltic adjective: Somewhat or partially asphaltic.
semiatheist adjective, noun: Somewhat or partially atheist.
semiattached adjective: Attached on one side; sharing a wall with a neighboring residential building.
semiaudible adjective: Only partly audible.
semiauthoritarian adjective: Characterized by the presence of some authoritarian qualities while still maintaining some significantly liberal or democratic ones.
semiauto adjective, noun: Alternative form of semi-auto.
semiautobiographical adjective: Partially, but not entirely, autobiographical
semiautobiographically adverb: in a semiautobiographical manner
semiautobiography noun: A semiautobiographical work.
semiautochthonous adjective: Partially autochthonous
semiautomate verb: To automate to some degree, without entirely eliminating manual work.
semiautomated adjective, verb: Partly automated.
semiautomatic adjective, noun: Alternative spelling of semi-automatic.
semiautomatically adverb: In a semiautomatic manner
semiautomation noun: Partial automation.
semiautomaton noun: a multiplicative operation of a monoid on a set
semiautonomous adjective: Partially, but not fully, autonomous.
semiautonomously adverb: In a semiautonomous manner.
semiautonomy noun: The quality of being semiautonomous.
semiauxiliary adjective, noun: Of a verb: functioning rather like an auxiliary verb, but not considered to be a full member of that class.
semiaxis noun: A line segment, joining the centre of a figure to an edge, that forms half of an axis of symmetry.
semibald adjective: Partly bald.
semiballistic adjective: Being or relating to a missile of a kind that has a low trajectory and/or is largely ballistic but can perform maneuvers in flight or make unexpected...
semibarbarian noun: Someone partly civilized.
semibarbarianism noun: The condition of being only partly civilized.
semibarbaric adjective: Somewhat barbaric.
semibarbarism noun: The quality or state of being half barbarous or uncivilized.
semibarbarous adjective: Partially barbarous; not fully civilised.
semibaronial adjective: Somewhat or partly baronial.
semibarren adjective: Partly barren.
semibasement noun: A basement which is only partially below ground level.
semibearable adjective: Somewhat but not entirely bearable
semibenevolent adjective: Partially or somewhat benevolent.
semibent adjective: Bent part way.
semibiographical adjective: Combining elements of biography with fiction.
semibiographically adverb: in a semibiographical manner
semibiography noun: A semibiographical work.
semibiotrophic adjective: Synonym of hemibiotrophic.
semibipedal adjective: Partially bipedal.
semibisexual adjective: Identifying as bisexual but only attracted to one gender.
semibisexuality noun: The state of identifying as bisexual but only being attracted to one gender.
semibituminous adjective: Partly bituminous.
semiblunt adjective: Somewhat or partly blunt.
semiboiled adjective: Being or relating to a soapmaking process in which the soap is heated but does not reach boiling point.
semibold adjective: Having a typeface that has thicker than usual strokes, but not as thick as a bold typeface
semiboneless adjective: Having had only some of the bones removed.
semiboner noun: A partially erect penis.
semibouffant adjective: Somewhat or partly bouffant.
semibounded adjective: Having either an upper or a lower bound, but not both
semiboundedness noun: The property of being semibounded.
semibourgeois adjective: Somewhat or partially bourgeois.
semibrachiation noun: brachiation assisted by use of a prehensile tail
semibrachiator noun: Any creature that moves by means of semibrachiation
semibreve noun /ˈsɛmɪbɹiːv/: A musical note four beats long in 4/4 time; a whole note (US)
semibreve rest noun: A semibreve rest is a pause or interval of silence equal in duration to two half rests or one half of a breve rest. In common or 4/4 time, its duration is...
semibrevis noun: Alternative form of semibreve
semibrief noun: A semibreve.
semibulk adjective: intermediate in volume between bulk and small or individual quantities
semibullvalene noun: A derivative of bullvalene in which one ethylene arm is replaced by a single bond.
semibuoyant adjective: Partially buoyant.
semiburrowing adjective: That sometimes burrows.
semibusy adjective: Somewhat busy.
semic adjective /ˈsi.mɪk/: Relating to a seme; constituting a seme.
semicalcareous adjective: Partially calcareous.
semicalcined adjective: Half or partially calcined.
semicalibrated adjective: Partially calibrated.
semicalyciform adjective: Shaped like a half-cup.
semicanonical adjective: Having a status approaching canonical.
semicapitalist adjective: Having certain aspects of capitalism.
semicaptive adjective: Kept partially in captivity.
semicaptivity noun: The condition of being kept partially in captivity.
semicarbazide noun: Any of a class or organic nitrogen compounds derived from the parent compound NH₂-NH-CO-NH₂; they react with aldehydes and ketones to form semicarbazones.
semicarbazone noun: The reaction product of an aldehyde or ketone with semicarbazide; they have the general formula R₁R₂C=N-NH-CO-NH₂
semicarbonaceous adjective: Somewhat or partly carbonaceous.
semicardinal adjective: Being or relating to a direction between two adjacent cardinal points, i.e. northwest, northeast, southwest, or southeast.
semicartilaginous adjective: Somewhat or partly cartilaginous.
semicastrate verb: To deprive of one testicle.
semicastration noun: Synonym of hemicastration.
semicasual adjective: somewhat casual.
semicatatonic adjective: In a state partially resembling catatonia.
semicategory noun: Synonym of semigroupoid.
semicelebrity noun: One who is almost a celebrity.
semicelestial adjective: Half or partly celestial.
semicell noun: Half of a cell.
semicellulose noun: Synonym of hemicellulose.
semicensored adjective: Partially censored.
semicensorship noun: The state of being semicensored.
semicentenarian noun /ˌsɛˌmaɪˌsɛnəˈnɛriən/: Synonym of fiftysomething: A person celebrating a semicentenary; a person between 50 and 59 years old.
semicentenary noun /ˌsɛˌmaɪˌsɛnˈtɛnəri/: Synonym of semicentennial: a 50th anniversary.
semicentennial adjective, noun /ˌsɛˌmaɪsnˈtɛniəl/: Of or related to a 50th anniversary, occurring every 50 years.
semicentral adjective: almost central
semicentralized adjective: Partly centralized.
semicentury noun: A period of fifty years.
semicerebellectomy noun: Synonym of hemicerebellectomy.
semiceremonial adjective: Somewhat or partly ceremonial.
semicha noun: Alternative form of semikhah.
semichaotic adjective: Partially chaotic.
semicharacteristic noun: A partial characteristic
semicharmed adjective: Alternative form of semi-charmed.
semichelate adjective: Partially chelate
semichemical adjective: Of a wood pulping process: using both chemical and mechanical techniques.
semichemically adverb: By a semichemical process.
semichild noun: A person who is partly a child, or somewhat childlike.
semichiral adjective: Describing a field that has chiral characteristics in some, but not all, dimensions
semichivalrous adjective: Partly chivalrous.
semichoral adjective: Relating to a semichorus.
semichoric adjective: Relating to a semichorus.
semichorus noun: half a chorus; a passage to be sung by a selected portion of the voices, rather than the full choir. It was popular in Ancient Greek theatre.
semichronic adjective: subchronic
semicircadian adjective: Occurring twice in a 24 hour period.
semicircle noun, verb: A half of a circle.
semicircled adjective, verb: Semicircular.
semicircular adjective: In the shape of half of a circle or a semicircle.
semicircular canal noun: Any of three semicircular interconnected tubes located inside each ear: the horizontal (or lateral) semicircular canal, the superior (or anterior)...
semicircularity noun: The quality of being semicircular.
semicircularly adverb: Done in a semicircular manner.
semicircumference noun: One half of the circumference of a circle
semicircumferential adjective: Partially circumferential.
semicircumferentor noun: A graphometer.
semicirque noun: A semicircular hollow or opening among trees or hills.
semicitizen noun: A person having only some of the rights or status of a citizen.
semicitizenship noun: The condition of having only some of the rights or status of a citizen.
semicivilised adjective: Alternative form of semicivilized.
semicivilization noun: The state of being semicivilized.
semicivilized adjective: Somewhat or partially civilized.
semiclad adjective: Partly clothed.
semiclairvoyant adjective: Relating to a form of parallel processing algorithm given approximate advance information about the problem, but not fully clairvoyant.
semiclassic adjective, noun: semiclassical (all senses)
semiclassical adjective: That is classical but has broad, popular appeal.
semiclassicality noun: The condition of being semiclassical
semiclassically adverb: In semiclassical terms.
semiclassified adjective: Somewhat or partly classified.
semiclause noun: A partial clause; part of a clause.
semiclear adjective: Partly clear.
semiclerical adjective: Somewhat or partly clerical.
semiclonal adjective: Using both sexual and asexual reproduction
semiclosed adjective: Partly closed.
semicloseted adjective: Partially open about one's sexual orientation, romantic orientation, or gender identity.
semiclosure noun: Half or partial closure.
semicoagulated adjective: Partly coagulated.
semicoercive adjective: Continuous and symmetric but with a nonzero kernel.
semicoherent adjective: Partially coherent.
semicoke noun: Any of a range of products intermediate in composition and consistency between coke and pitch, formed by the incomplete carbonization of coal.
semicollapsed adjective: Partially collapsed.
semicollapsible adjective: Partly collapsible; having certain components that can be collapsed.
semicollared hawk noun: A species of hawk, Microspizias collaris
semicollegial adjective: Somewhat or partly collegial.
semicollegiate adjective: Somewhat or partly collegiate.
semicolloquial adjective: Somewhat or partially colloquial.

Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0): each word's first meaning. A word with a page of its own links to it; for the rest, this line is PlainSpell's entry. Total under S: 73,223 words, in 245 parts.