buoy up
Verb
Meaning
keep afloat
become more cheerful
make more cheerful
Source: WordNetSynonyms
lighten
buoy
lighten up
gladden
back
support
help
prop
raise
restore
encourage
lift
console
boost
sustain
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Antonyms
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Examples
The life vest buoyed him up
after a glass of wine, he lightened up a bit
the conversation lightened me up a bit