plural of leader of the opposition

plural of opposition parry

Opportune times seldom appear again.

(geometry) Either of the angles directly opposite to each other when two lines intersect in a plane.

plural of Oppy

plural of oppignoration

(Church of England) A party who opposes the grant of a faculty for the alteration of a church.

(mineralogy) A triclinic mineral that is a mixed hydrated sodium sulfate and uranate

plural of opposite angle

simple past tense and past participle of co-op