Substitute
Substitute verb - To serve as a replacement usually for a time only.
Usage example: substituting for the talk show host while she is on vacation
Sub is a synonym for substitute in interchange topic. In some cases you can use "Sub" instead the word "Substitute" as a verb or a noun or an adjective, when it comes to topics like alternate. informal substitute
Sub
Sub verb - To serve as a replacement usually for a time only.
Usage example: the weekend anchor is subbing for the TV station's main anchor all this week
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Synonyms for Sub
Mutual synonyms
Cite this Source
Sub and Substitute. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/substitute/sub
Substitute & Sub. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/substitute/sub>.
Sub or Substitute. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/substitute/sub.
Google Ngram Viewer shows how "substitute" and "sub" have occurred on timeline