Extant
Extant adjective - Having being at the present time.
In use
In use adjective - Currently being used.
Extant and in use are semantically related in contemporary topic. You can use "Extant" instead an adjective phrase "In use", if it concerns topics such as existing.
Mutual synonyms
Cite this Source
In use and Extant. (2016). Retrieved 2026, August 10, from https://thesaurus.plus/related/extant/in_use
Extant & In use. N.p., 2016. Web. 10 Aug. 2026. <https://thesaurus.plus/related/extant/in_use>.
In use or Extant. 2016. Accessed August 10, 2026. https://thesaurus.plus/related/extant/in_use.
Google Ngram Viewer shows how "extant" and "in use" have occurred on timeline