Looking for the meaning or definition of the word rejoin? Here's what it means.
Verb
To join again; to unite after separation.
To come, or go, again into the presence of; to join the company of again.
(archaic) To state in reply; -- followed by an object clause.
(archaic, intransitive): To answer to a reply.
(law, intransitive) To answer, as the defendant to the plaintiff's replication.
(patent law, nonstandard) in US patent law To re-insert a patent claim, typically after allowance of a patent application, applied to patent claims that had been withdrawn from examination under a restriction requirement, based on rejoinder (patent law).