English Words: O

15,494 words · Page 20 of 310

The state or characteristic of having dulled senses or limited awareness.

obturaculumnoun

A plug of connective tissue separating the hemocoels of the head and thorax of some lice

To block up or obstruct.

The act of stopping up, or closing, an opening.

Relating to or causing obturation

An object used to obstruct a hole, such as a fissure of the palate.

obturatoriusnoun

The obturator nerve

inversely top-shaped

Obsolete form of obtuse-angled.

obtusangularadj

obtuse-angled

Blunt; not sharp, pointed, or acute in form.

In an obtuse manner.

The quality of being obtuse.

A bromine-containing polycyclic ketal found in the marine alga Laurencia obtusa.

Somewhat obtuse.

obtuseness

A surname from Japanese.

A city, the administrative centre of Obukhiv urban hromada and Obukhiv Raion, Kyiv Oblast, Ukraine.

The former name of Bulaqty (a village in Beskol rural okrug, Alakol Raion, Jetisu Oblast, Kazakhstan).

Obukhovskayaname

A rural territory of Starooskolsky Urban Okrug, Belgorod Oblast, Central Federal District, Russia. Seat: Obukhovka.

Obukhovskoyename

A rural settlement in Pizhansky Raion, Kirov Oblast, Volga Federal District, Russia. Seat: Obukhovo.

Obukhovychiname

A village, the administrative centre of Obukhovychi starostynskyi okruh, Ivankiv settlement hromada, Vyshhorod Raion, Kyiv Oblast, Ukraine.

To shade; to darken; to cloud.

Overshadowed.

obumbrationnoun

The act of darkening or obscuring; obnubilation; obscuration.

Nickname for Barack Obama, mostly used by conservative detractors.

Crooked; bent.

Abbreviation of obvious.

To surround with, or as with, a wall.

The act of happening incidentally; that which happens casually; an incidental advantage; an occasional offering.

conversant; familiar or in the know about a certain topic.

Turned or facing toward the observer.

In an obverse manner.

The act of turning toward or downward.

Clipping of obvious.

To anticipate and prevent or bypass (something which would otherwise have been necessary or required); to render (something) unnecessary.

The act of obviating; deterrence or prevention.

A grammatical marker that distinguishes a relatively non-salient referent in a given context from a relatively salient (proximate) one.

In an obviative manner.

One who obviates.

The quality of being obvious.

Easily discovered, seen, or understood; self-explanatory.

obvious by inspectionadj

evident in the mind's eye, without formal proof being necessary.

In an obvious or clearly apparent manner.

obviousnessnoun

The characteristic of being obvious.

overlapping; contorted; convoluted

To enfold or wrap around; to cover by wrapping.

Curved downward or inward.

Clipping of obviously.

Alternative form of obvi (“obviously”).

Spelling & Dictionary Insight

The English alphabetical index for the letter O contains 15,494 headwords drawn from our Wiktionary-derived dictionary table. At 50 entries per page the browse splits into 310 pages, and you are currently viewing page 20. 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 "O" 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.