Relieve
Relieve verb - To take the place of.
Usage example: at daybreak a soldier arrived to relieve the one who had spent the night on guard duty
Substitute is a synonym for relieve. In some cases you can use "Substitute" instead a verb "Relieve".
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
Relieve is a synonym for substitute in interchange topic. Sometimes you can use "Relieve" instead a verb "Substitute", if it concerns topics such as take the place of.
Common collocations
Cite this Source
Substitute and Relieve. (2016). Retrieved 2026, July 21, from https://thesaurus.plus/related/relieve/substitute
Relieve & Substitute. N.p., 2016. Web. 21 Jul. 2026. <https://thesaurus.plus/related/relieve/substitute>.
Substitute or Relieve. 2016. Accessed July 21, 2026. https://thesaurus.plus/related/relieve/substitute.
Google Ngram Viewer shows how "relieve" and "substitute" have occurred on timeline