Lighten up
Lighten up verb - Make lighter or brighter.
Relieve and lighten up are semantically related. In some cases you can use "Relieve" instead a verb "Lighten up".
Relieve
Relieve verb - To make more bearable or less severe.
Lighten up and relieve are semantically related. Sometimes you can use "Lighten up" instead a verb "Relieve".
Mutual synonyms
Both terms in one sentence
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Japanese workers are known for being much more hardworking than your average worker, so pretty much the reason why they try to lighten up the mood all the time by goofing off once in a while is to relieve all the pent-up stress from working all day and all night.
Source: Manga / New Game!
Cite this Source
Relieve and Lighten up. (2016). Retrieved 2026, August 16, from https://thesaurus.plus/related/lighten_up/relieve
Lighten up & Relieve. N.p., 2016. Web. 16 Aug. 2026. <https://thesaurus.plus/related/lighten_up/relieve>.
Relieve or Lighten up. 2016. Accessed August 16, 2026. https://thesaurus.plus/related/lighten_up/relieve.
Google Ngram Viewer shows how "lighten up" and "relieve" have occurred on timeline