From Middle English opposicioun, from Old French oposicion (whence French opposition), from Late Latin oppositiō, translating Ancient Greek ἀντίθεσις (antíthesis), from the past participle stem of classical Latin oppōnō (“I set against”).
opposition (plural oppositions)
- The action of opposing or of being in conflict.
- An opposite or contrasting position.
- (astronomy) The apparent relative position of two celestial bodies when one is at an angle of 180 degrees from the other as seen from the Earth.
- (politics) A political party or movement opposed to the party or government in power.
- (law) In United States intellectual property law, a proceeding in which an interested party seeks to prevent the registration of a trademark or patent.
- (chess) A position in which the player on the move must yield with his king allowing his opponent to advance with his own king.
- (logic) The difference of quantity or quality between two propositions having the same subject and predicate.
- The translations below need to be checked and inserted above into the appropriate translation tables, removing any numbers. Numbers do not necessarily match those in definitions. See instructions at Wiktionary:Entry layout#Translations.
- Genitive singular form of oppositio.
opposition f (plural oppositions)