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lighten

2 ENTRIES FOUND:
1 lighten /ˈlaɪtn̩/ verb
lightens; lightened; lightening
1 lighten
/ˈlaɪtn̩/
verb
lightens; lightened; lightening
Britannica Dictionary definition of LIGHTEN
[+ object] : to make (something) bright, light, or clear
[no object] : to become bright, light, or clear
compare 2lighten

— lightener

/ˈlaɪtn̩ɚ/ noun, plural lighteners [count]
2 lighten /ˈlaɪtn̩/ verb
lightens; lightened; lightening
2 lighten
/ˈlaɪtn̩/
verb
lightens; lightened; lightening
Britannica Dictionary definition of LIGHTEN
[+ object] : to make (something) less heavy, difficult, or severe
[no object] : to become less heavy, difficult, or severe
[+ object] : to make (something) less sad or serious
[no object] : to become less sad or serious
[no object] : to become less forceful

lighten up

[phrasal verb] informal
: to become more relaxed and informal : to stop being serious, worried, etc. often used as a command
compare 1lighten