Synonyms|649Antonyms|194|Broader|12Narrower|0Related|467
2
alter
2
change
1
acquire more light
1
activity
1
change intensity
1
cheer(noun, verb)
1
encourage
1
enliven
1
hearten
1
illuminate
1
modify
1
polish
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ChicagoSmart Define. 2015. "brighten thesaurus" https://smartdefine.org/brighten/thesaurus/broader (accessed September 21, 2026).
HarvardSmart Define 2015, brighten thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/brighten/thesaurus/broader>.
MLASmart Define. "brighten thesaurus" 10 April 2015. Web. 21 September 2026. <https://smartdefine.org/brighten/thesaurus/broader>