107 entries under boost topic. ×

23
lighten(verb, clear, increase, open, reduce)
17
cheer(verb, encourage, raise, delight, stimulate)
17
enliven(verb, encourage, raise, stimulate, excite)
13
gladden(verb, encourage, delight, stimulate, excite)
12
cheer up(verb, expression, phrasal verb, encourage, raise)
11
hearten(verb, encourage, delight, stimulate, excite)
10
perk up(verb, expression, phrasal verb, encourage, raise)
8
encourage(verb, stimulate, excite, happy, improve)
7
animate(verb, encourage, raise, stimulate, excite)
7
elate(verb, encourage, raise, delight, excite)
6
improve(verb, encourage, raise, development, stimulate)
5
buoy up(verb, expression, phrasal verb, excite, happy)
5
elevate(verb, encourage, raise, development, excite)
5
exhilarate(verb, encourage, raise, stimulate, excite)
5
inspire(verb, encourage, raise, stimulate, excite)
5
inspirit(verb, encourage, raise, stimulate, excite)
5
uplift(verb, encourage, raise, excite)
4
buoy(verb, encourage, stimulate, excite, prepare)
4
console(verb, reduce, release, free, encourage)
4
rally(verb, encourage, raise, development, stimulate)
11 years ago|9.6k views|share |citing 
APASmart Define. (2015). brighten thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/brighten/thesaurus/synonyms
ChicagoSmart Define. 2015. "brighten thesaurus" https://smartdefine.org/brighten/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, brighten thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/brighten/thesaurus/synonyms>.
MLASmart Define. "brighten thesaurus" 10 April 2015. Web. 24 September 2026. <https://smartdefine.org/brighten/thesaurus/synonyms>