Index of English words, starting with "op"

(1) - Opossum (n.) Any American marsupial of the genera Didelphys and Chironectes. The common species of the United States is Didelphys Virginiana.

(1) - Oppidan (n.) A student of Eton College, England, who is not a King's scholar, and who boards in a private family.
(2) - Oppidan (n.) An inhabitant of a town.
(3) - Oppidan (a.) Of or pertaining to a town.

(1) - Opponent (n.) One who opposes in a disputation, argument, or other verbal controversy; specifically, one who attacks some theirs or proposition, in distinction from the respondent, or defendant, who maintains it.
(2) - Opponent (n.) One who opposes; an adversary; an antagonist; a foe.
(3) - Opponent (a.) Situated in front; opposite; hence, opposing; adverse; antagonistic.

(1) - Opportune (v. t.) To suit.
(2) - Opportune (a.) Convenient; ready; hence, seasonable; timely.