of movement or direction: In an opposite path to, to be able to fulfill; toward;
upon: as, to hit against a rock; the rain beats resistant to the window: to ride from the wind.
Of place: In an opposite position; straight opposing; in front of: within feeling usually preceded by more than: since, a ship is from the mouth of a river.
In contact with; bearing upon: as, to lean against a wall; in optical contact with (anything behind); athwart: since, the ship loomed up dark and grim resistant to the sky.
Of action or purpose: In opposition to; in contrariety to; unfavorable or aggressive to: as, twenty votes against ten; against legislation, explanation, or public opinion.
In resistance to or defense from: as, security against burglars, cold, fire, etc.; to alert one against danger; the public tend to be cautioned against pickpockets.
In supply for; in preparation for; in anticipation of; with reference to.
In exchange for; in substitution for; as a balance to: as, an exporter draws against merchandise sent.
for the intended purpose of eating time: as, he talked against time, that is, merely to gain time, a method sometimes adopted by members of legislative and deliberative assemblies who would like to beat some measure or movement by lapse of the time, or even to gain time for followers to assemble.
(by ellipsis). Against the time that; by the time that; prior to: as, be ready against I get straight back.