against

1. In opposition to something.

- Are you for the new ring road? No, I'm against.

2. (gambling) Having a specified likelihood of not winning or happening.

- The second favourite won the race at odds of two to one against.

1. (obsolete) By the time that (something happened); before.

1. (heading, physical) A close but separated relationship.

2. In a contrary direction to.

- If you swim against the current, you must work harder.

3. Close to.

- The kennel was put against the back wall.

4. In front of; before a background.

- The giant was silhouetted against the door.

5. In physical contact with.

- The puppy rested its head against a paw.

6. In physical opposition to, or in collision with.

- The rain pounds against the window.

7. (heading, social) A contrasting or competitive relationship.

8. In contrast and/or comparison with.

- He stands out against his local classmates.

9. In competition with, versus.

- The Tigers will play against the Bears this weekend.

10. In opposition to.

- Are you against freedom of choice? I'd bet against his succeeding.

11. In exchange for.

12. As counterbalance to.

13. As a charge on.

14. As protection from.

- He turned the umbrella against the wind.

15. (obsolete) Exposed to.

16. In anticipation of; in preparation for (a particular time, event etc.).

List of Words