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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1) There is no medicine against death. 
2) Save money against a rainy day.
3) No fence against (for) ill fortune.
4) A house divided against itself cannot stand.
5) No fence against (an) ill fortune.
6) If a house be divided against itself,(http://sentencedict.com/against.html) that house cannot stand.
7) Really, what we want now, is not laws, against crime, but a law a -gainst insaity.
8) A blind man who leans against a wall imagines that it's the boundary of the world.
9) The friar preached against stealing and had a goose in his sleeve.
10) The best remedy against an ill man is much ground between.
11) Buying a house is the best hedge against inflation.
12) The new evidence weakens the case against her.
13) Police used water cannon and tear gas against demonstrators.
14) He hurt his head by running against a wall.
15) Buying a house will be a hedge against inflation.
16) There is widespread prejudice against workers over 45.
17) The pound was devalued against the US dollar.
18) The car rammed against/into the lorry.
19) Corbett leaned against the wall and promptly vomited.
20) They have mounted a propaganda campaign against Western governments.
21) The boat bumped against a solid object.
22) She raged against her husband for some household affairs.
23) Doctors have warned against complacency in fighting common diseases.
24) He's always railing against his wife about her extravagance.
25) The hills stood stark against the winter sky.
26) Discrimination against women is not allowed.
27) It is hard to sit in Rome and strive against the Pope.
28) Rear sons for help in old age; and store up grains against famine.
29) It is not a sign of humility to declaim against pride.
30) When a true genius appears in the world you may know him by his sign, that the dunces are all in confederacy against him.
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.