keep up

1 to continue to operate or to meet one's needs let's hope that old air conditioner keeps up through this heat wave Synonyms hold up, hold out, last, prevail, surviveRelated Words bear up, carry on, cope, endure, fare, get along, get by, get on, go, hang in, make out, manage, persevere; abide, continue, draw out, hang on, hold on, linger, persist, remain, run on, stretchNear Antonyms break, break down, collapse, conk (out), crash, cut out, die, expire, stall, stop; run down, waneAntonyms fail, fizzle, give out, go out, peter (out), run out

2 to keep in good condition kept the house up while the owners were gone Synonyms conserve, maintain, preserve, saveRelated Words service; support, sustain; care (for), husband, manage; defend, guard, protect, safeguard, screen, shield; cure, fix, heal, remedy; mend, patch, rebuild, reconstruct, rehabilitate, rejuvenate, restoreNear Antonyms disregard, ignore, neglect; break, damage, destroy, harm, hurt, impair, injure, ruin, wreck

3 to remain indefinitely in existence or in the same state let's hope this beautiful weather keeps up for the rest of our vacation Synonyms abide, bide, endure, hold on, hold up, continue, last, perdure, persist, remain, run onRelated Words linger, stay, stick around, tarry; carry through, prevail, surviveNear Antonyms abate, die (down), ebb, let up, moderate, subside, waneAntonyms cease, close, conclude, desist, die, discontinue, end, expire, finish, lapse, leave off, pass, quit, stop, terminate, wind up