buck up

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verb

Definition of BUCK UP

1

to become glad or hopeful <buck up, kids, it's not so bad as you're making it out to be>

Synonyms brighten, buck up, lighten, look up, perk (up)

Related Words rejoice; liven (up), revive; beam, glow, radiate, sparkle; encourage, gladden, hearten

Near Antonyms despair, despond; brood, fret, mope

Antonyms darken, sadden

2

to fill with courage or strength of purpose <a surprise presidential visit to buck up the troops>

Synonyms bear up, buck up, buoy (up), cheer (up), chirk (up), embolden, hearten, inspire, inspirit, steel

Related Words animate, enliven, invigorate; enforce, fortify, reinforce (also reenforce), strengthen; assure, reassure; boost, energize, excite, galvanize, provoke, quicken, rally, stimulate, stir

Near Antonyms demoralize, depress, sadden; debilitate, enfeeble, hamstring, undermine, weaken; intimidate, psych (out)

Antonyms daunt, discourage, dishearten, dispirit