1. (noun)resistance, opposition the action of opposing something that you disapprove or disagree with
"he encountered a general feeling of resistance from many citizens"; "despite opposition from the newspapers he went ahead"
2. (noun)opposition, oppositeness the relation between opposed entities
3. (noun)confrontation, opposition the act of hostile groups opposing each other
"the government was not ready for a confrontation with the unions"; "the invaders encountered stiff opposition"
4. (noun)opposition, opponent, opposite a contestant that you are matched against
5. (noun)opposition a body of people united in opposing something
6. (noun)opposition a direction opposite to another
7. (noun)enemy, foe, foeman, opposition an armed adversary (especially a member of an opposing military force)
"a soldier must be prepared to kill his enemies"
8. (noun)Opposition the major political party opposed to the party in office and prepared to replace it if elected
"Her Majesty's loyal opposition"