Against meaning : In a contrary direction to. In physical opposition to; in collision with. In physical contact with, so as to abut or be supported by. Close to, alongside. In front of; before (a background). In contrast or comparison with. In competition with, versus. Contrary to; in conflict with. In opposition to. Of betting odds, denoting a worse-than-even chance. In exchange for. As counterbalance to. As a charge on. As protection from. In anticipation of; in preparation for (a particular time, event etc.). (Hollywood) To be paid now in contrast to the following amount to be paid later under specified circumstances, usually that a movie is made or has started filming. Exposed to. By the time that (something happened); before.