1. disapprove of and attempt to prevent, especially by argument: "those of you who oppose capital punishment"
▪ actively resist or refuse to comply with (a person or a system): "off-roaders who adamantly opposed new trail restrictions"
▪ compete against (someone) in a contest:"a candidate to oppose the leader in the presidential contest"
Word Originlate Middle English: from Old French opposer, from Latin opponere (see opponent), but influenced by Latin oppositus ‘set or placed against’ and Old French poser ‘to place’.