- (transitive) To return something to it's original place.
- He carefully put the vase back on the shelf.
- (transitive) To postpone an arranged event or appointment.
- The meeting has been put back to 5.00 pm.
- (transitive, idiomatic) To drink fast; to knock down alcohol.
- (transitive, idiomatic) To change the time in a time zone to an earlier time.
- Don't forget that this Sunday we put the clocks back an hour.
about ship, aggravate, back and fill, bear away, bear off, bear to starboard, beat, beat about, beat back, beat off, block, box off, break, bring about, bring back, bring round, brush off, cant, cant round, cast, cast about, change course, change the heading, chase, chase away, chase off, check, come about, come back, come home, counter, cut, damage, deteriorate, dilapidate, dismiss, double, double a point, double back, drive away, drive back, embitter, endamage, exacerbate, extradite, fend, fend off, fetch about, give back, go about, go back, go home, gybe, harm, heave round, hinder, hold at bay, hold off, hurt, impair, injure, irritate, jibe, jibe all standing, keep at bay, keep off, make worse, miss stays, obstruct, pack off, parry, place in, ply, push back, put about, reactivate, rebuff, recommit, reconstitute, reconvert, recruit, reenact, reestablish, refill, reform, refuse, rehabilitate, reinstall, reinstate, reinstitute, reintegrate, reinvest, remand, remit, repatriate, repel, replace, replenish, repulse, restore, return, revest, round a point, send away, send back, send off, send packing, sheer, shift, slew, snub, spurn, stave off, stop, swerve, swing round, swing the stern, tack, take back, throw about, thrust back, turn, turn aside, turn back, veer, ward off, weaken, wear, wear ship, wind, worsen, yaw
- The object in all senses can come before or after the particle. If it is a pronoun, then it MUST come before the particle.