cross-post

or cross·post

[ kraws-pohst kros‐ ]
/ ˈkrɔsˌpoʊst ˈkrɒs‐ /
Digital Technology

verb (used with or without object)

to post (the same message) to two or more message boards or electronic mailing lists at the same time.

noun

a message posted to two or more message boards or electronic mailing lists at the same time: Cross-posts are often greeted with hostility.

Example sentences from the Web for cross-post