- (prep.) From an opposite direction so as to strike or come in contact with; in contact with; upon; as, hail beats against the roof.
- (prep.) Abreast; opposite to; facing; towards; as, against the mouth of a river; -- in this sense often preceded by over.
- (prep.) By of before the time that; in preparation for; so as to be ready for the time when.
- (prep.) In opposition to, whether the opposition is of sentiment or of action; on the other side; counter to; in contrariety to; hence, adverse to; as, against reason; against law; to run a race against time.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). against. Retrieved September 20, 2026, from http://smartdefine.org/against/definitions/1971652 |
| Chicago | Webster's. 2011. "against" http://smartdefine.org/against/definitions/1971652 (accessed September 20, 2026). |
| Harvard | Webster's 2011, against, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/against/definitions/1971652>. |
| MLA | Webster's. "against" 27 May 2011. Web. 20 September 2026. <http://smartdefine.org/against/definitions/1971652> |