Join
Join verb - To be adjacent to.
Sign up to and join are semantically related. In some cases you can use "Sign up to" instead a verb "Join".
Sign up to
Both terms in one sentence
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In the aftermath, the liberated nations in the former Global Soviet Union now sign up to join Lex's new Global United States.
Source: America Takes Over the World - The armed forces has what is called the DEP Programnote which allows recruits to sign up to join the armed forces branch of their choice, but delays their actual entry date for up to a full 365 days.
Source: Redundancy / Real Life -
What's worse, in the NCR, troopers can sign up to join the active military at 16 - Chief Hanlon says that any Legionnaire who survives 10 years is considered an exception veteran, as many, many die long before then.
Source: Child Soldiers
Cite this Source
Sign up to and Join. (2016). Retrieved 2026, August 02, from https://thesaurus.plus/related/join/sign_up_to
Join & Sign up to. N.p., 2016. Web. 02 Aug. 2026. <https://thesaurus.plus/related/join/sign_up_to>.
Sign up to or Join. 2016. Accessed August 02, 2026. https://thesaurus.plus/related/join/sign_up_to.