Dictionary
lighten up
lighten up
verb
Definition of LIGHTEN UP
intransitive verb
: to take things less seriously
First Known Use of LIGHTEN UP
1911
Rhymes with LIGHTEN UP
belly-up, belly up, bottom-up, buckle up, bundle up, buttercup, butter up, buttoned-up, cover-up, cozy up, double up, dummy up, fancy up, follow-up, gussy up, higher-up, live it up, loosen up, loving cup, measure up, mix it up, open up, pick-me-up, pony up, power up, runner-up, seven-up, shoot-'em-up, stirrup cup, suck it up, suction cup, summing-up, up-and-up, wickiup, winding-up
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