Sign up
Sign up verb - Engage by written agreement.
Subscribe
Subscribe verb - To write one's name on (as a document).
Usage example: they dutifully subscribed several dozen forms at the mortgage closing
Sign up and subscribe are semantically related in contribute topic. Sometimes you can use "Sign up" instead a verb "Subscribe".
Mutual synonyms
Cite this Source
Subscribe and Sign up. (2016). Retrieved 2026, August 12, from https://thesaurus.plus/related/sign_up/subscribe
Sign up & Subscribe. N.p., 2016. Web. 12 Aug. 2026. <https://thesaurus.plus/related/sign_up/subscribe>.
Subscribe or Sign up. 2016. Accessed August 12, 2026. https://thesaurus.plus/related/sign_up/subscribe.
Google Ngram Viewer shows how "sign up" and "subscribe" have occurred on timeline