Extra
Extra adverb - To a great degree.
Once in a while and extra are semantically related. In some cases you can use "Once in a while" instead an adverb "Extra".
Once in a while
Once in a while adverb - Now and then or here and there.
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Synonyms for Once in a while
Extra and once in a while are semantically related. Sometimes you can use "Extra" instead an adverb phrase "Once in a while".
Mutual synonyms
Both terms in one sentence
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She came to Pontypandy to help conduct a series of drills, and later on came by once in a while to visit or when an extra hand was needed (similar to Chief Fire Officer Boyce in the later episodes).
Source: Western Animation / Fireman Sam - Demoted to Extra: Alex has largely stayed off the grid since the breakup, only appearing on Ryan's stream once in a while.
Source: Lets Play / Tipping Forties -
Recurring Extra: There's a catguy and mermaid couple that show up once in a while.
Source: Manga / A Centaur's Life
Cite this Source
Once in a while and Extra. (2016). Retrieved 2026, August 08, from https://thesaurus.plus/related/extra/once_in_a_while
Extra & Once in a while. N.p., 2016. Web. 08 Aug. 2026. <https://thesaurus.plus/related/extra/once_in_a_while>.
Once in a while or Extra. 2016. Accessed August 08, 2026. https://thesaurus.plus/related/extra/once_in_a_while.