English Words: S

54,294 words · Page 229 of 1086

semi-weeklyadj

Occurring twice a week; occurring once every one-half a week

semi-worksnoun

A manufacturing plant large enough to produce market development quantities, but smaller than a full-scale commercial plant.

semiabandonedadj

Not completely abandoned, but neglected or rarely visited.

semiabstractadj

Not entirely abstract; between abstract and concrete

semiabstractionnoun

semiabstract artwork

semiaccidentallyadv

In a manner that is partly accidental.

semiacetalnoun

Hemiacetal.

semiacidadj

Slightly acid; semiacidic.

semiacousticadj

Having a soundbox as well as one or more electric pickups.

semiacquaintancenoun

A vague acquaintance; a person whom one barely knows.

semiactivelyadv

In a semiactive manner

semiacyclicadj

Having no ascending cycles

semiadherentadj

partly adherent

semiadjustableadj

Partly adjustable.

semiadnateadj

Somewhat or partly adnate.

semiaerobicadj

Partially aerobic

semiaerobicallyadv

In a semiaerobic manner

semiaffordableadj

Expensive but affordable if one stretches one's resources.

semiagriculturaladj

Partly agricultural.

semialdehydenoun

The monoaldehyde of a dicarboxylic acid; those of some amino acids are intermediates in biosynthesis

semialgebranoun

A class that is closed under intersection and semiclosed under set difference

semialgebraicadj

Describing any algebraic system in which only real roots are investigated.

semialienadj

Somewhat or partly alien.

semiallogeneicadj

Partially allogeneic, i.e. sharing some, but not all genes.

semiallograftnoun

A transplant, half of whose genes come from another individual (e.g. from a father)

semialpineadj

Somewhat or partly alpine.

semialtricialadj

Somewhat altricial (and somewhat precocial)

semiamphibiousadj

Of a vehicle: having limited amphibious capability.

semiamplenoun

Having a positive multiple that is generated by global sections.

semiamplenessnoun

The quality of being semiample.

semiamplexicauladj

Partially amplexicaul; embracing the stem half or partly round.

semiamplitudenoun

The amplitude of a wave equal to half of that from peak to peak.

semiamusingadj

Somewhat or partially amusing.

semianaerobicadj

Partially anaerobic

semianaerobicallyadv

In a semianaerobic manner

semianalyticadj

Having some analytic characteristics

semianalyticaladj

Partially analytical

semianatomicaladj

Somewhat or partly anatomical.

semianechoicadj

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.

semianglenoun

an angle of half a given size

semianimaladj

Half or partly animal.

semianimateadj

Partly, but not truly or wholly, alive.

semiannualadj

Biannual: occurring twice a year

semiannuallyadv

In a semiannual manner, twice yearly.

semiannularadj

Having a shape resembling part of a ring or incomplete circular band.

semianthracitenoun

Coal that is intermediate between anthracite and semibituminous coal.

semiapocryphaladj

Partly apocryphal.

semiapologeticadj

Somewhat apologetic.

semiapologeticallyadv

In a semiapologetic manner.

semiappressedadj

Somewhat or partially appressed.

Spelling & Dictionary Insight

The English alphabetical index for the letter S contains 54,294 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 1,086 pages, and you are currently viewing page 229. Every row above is a dictionary-backed entry with a canonical slug, and each links through to a full definition page with pronunciation, senses, etymology, and related-word data where available.

On this page 50 of 50 entries carry a part-of-speech tag and 50 carry at least one stored definition. Coverage varies across letters because Wiktionary volunteers build entries at different speeds for different parts of the alphabet, letters with common starting sounds (S, C, T, P) usually have the densest coverage, while less frequent starters (X, Q, Z) tend to have shorter but more specialised lists. PlainSpell surfaces whatever data is present and links back to the source when a definition is not yet recorded.

For readers using this index as a spelling reference, the guarantee is that every form you see on the list is a documented English headword, not a guess, not a derived inflection lacking a lemma row. If a word you expected to find is absent from the "S" list, it usually means the form exists only as an inflection of another lemma (e.g. a past participle stored under the infinitive) or the entry has not yet been imported from Wiktionary. Use the search bar or the misspelling lookup to resolve these cases.