Synonym: in opposition to, versus. Antonym: for. Similar words: fight against, struggle against, again, all over again, mainstream, regain, ungainly, in step. Meaning: [əˈgenst; əˈgeɪnst] 
prep.1. in opposition to; contrary to; adverse or hostile to: twenty votes against ten; against reason. 2. in resistance to or defense from: protection against burglars. 3. in an opposite direction to: to ride against the wind. 4. into contact or collision with; toward; upon: The rain beat against the window. 5. in contact with: to lean against the wall. 6. in preparation for; in provision for: money saved against a rainy day. 7. having as background: a design of flowers against a dark wall. 8. in exchange for; as a balance to or debit or charge on: He asked for an advance against his salary. 9. in competition with: a racehorse running against his own record time. 10. in comparison or contrast with: a matter of reason as against emotion. 11. beside; near; before: The car is against the building. 12. over against, in contrast with: the rich over against the poor. conj. 13. Archaic. before; by the time that..
prep.1. in opposition to; contrary to; adverse or hostile to: twenty votes against ten; against reason. 2. in resistance to or defense from: protection against burglars. 3. in an opposite direction to: to ride against the wind. 4. into contact or collision with; toward; upon: The rain beat against the window. 5. in contact with: to lean against the wall. 6. in preparation for; in provision for: money saved against a rainy day. 7. having as background: a design of flowers against a dark wall. 8. in exchange for; as a balance to or debit or charge on: He asked for an advance against his salary. 9. in competition with: a racehorse running against his own record time. 10. in comparison or contrast with: a matter of reason as against emotion. 11. beside; near; before: The car is against the building. 12. over against, in contrast with: the rich over against the poor. conj. 13. Archaic. before; by the time that.. 
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91) The electors declared against their former Member of Parliament.
92) My grandfather fought against the Fascists in Spain.
93) He has been harbouring a grudge against me.
94) The present law discriminates unfairly against women.
95) His dogs were inoculated against rabies.
96) All who saw the distressing scene revolted against it.
97) They decided against a picnic in the park.
98) The odds are heavily against him .
99) France won by six goals to two against Denmark.
100) She sat back,(http://sentencedict.com/against.html) nestling against his chest.
101) He led a mutiny against the captain.
102) Every council member voted against the proposal.
103) We could hear waves crashing on/against the shore.
104) NATO directed the attacks against the bridge.
105) She spoke against the decision to close the college.
106) She flattened her nose and lips against the window.
107) The huge trees were profiled against the night sky.
108) There are many arguments against smoking.
109) He warned against making hasty decisions.
110) She was forced to marry against her will.
111) He took out a court injunction against the newspaper demanding the return of the document.
112) A dark shape stood silhouetted against the bright morning sky.
113) The state has a duty to protect its citizens against external enemies.
114) They were accused of being privy to the plot against the king.
115) The colonel led a successful raid against a rebel base.
116) Bias against women permeates every level of the judicial system.
117) Guerrillas have pledged to intensify the armed struggle against the new government.
118) Eastern Europe was important to Russia as a buffer against the West.
119) He's already in training for the big race against Bailey.
120) Without doubt, the national bourgeoisie tends to vacillate, but we should, nevertheless, make use of its positive side, uniting with it as well as struggling against it.
More similar words: fight against, struggle against, again, all over again, mainstream, regain, ungainly, in step, install, instant, instinct, instruct, instance, instead of, instantly, instructor, instrument, for instance, instruction, installation, institution, constraint, institutional, instructional, maintain, agape, magazine, non-stop, monster, insect.