crosspost noun 2verb 2forms 3 noun2 •An instance of crossposting, or the post thus created. •(Internet) An electronic message posted to multiple newsgroups or forums simultaneously. verb2 •To post an entry (in a book index or other index) such that no matter which word a user looks under, they will find the relevant entry (see examples). •(Internet) To post (a message) to multiple newsgroups or forums simultaneously.but it sounds like a rationalization to me. I'm cross-posting this to net.women to see how women feel about it. — 1983 formscrossposted · crossposting · crossposts