Act as
Act as verb - Function as or act like.
Substitute and act as are semantically related. in symbolize topic. In some cases you can use "Substitute" instead a verb "Act as".
Substitute
Substitute verb - To give up (something) and take something else in return.
Act as and substitute are semantically related. Sometimes you can use "Act as" instead a verb "Substitute".
Both terms in one sentence
- Cassie tries to act as a sort-of therapeutic substitute, but her success is limited.
Source: All Therapists Are Muggles -
As for Sheali, their laws and traditions act as a brain substitute, allowing them to spend their adult life without thinking.
Source: Literature / Spectrum -
Yuki's older brother Ayame offers to act as a literal Parental Substitute, to make up for the years when he was an Aloof Big Brother to Yuki.
Source: Parental Substitute
Cite this Source
Substitute and Act as. (2016). Retrieved 2026, July 29, from https://thesaurus.plus/related/act_as/substitute
Act as & Substitute. N.p., 2016. Web. 29 Jul. 2026. <https://thesaurus.plus/related/act_as/substitute>.
Substitute or Act as. 2016. Accessed July 29, 2026. https://thesaurus.plus/related/act_as/substitute.
Google Ngram Viewer shows how "act as" and "substitute" have occurred on timeline