barge-in

Verbs

(v) enter uninvited; informal
- let's crash the party!
gate-crash, crash,
(v) break into a conversation
- her husband always chimes in, even when he is not involved in the conversation
butt in, chime in, chisel in, break in, cut in, put in,

Synonyms

gate-crash crash butt in chime in chisel in break in cut in put in

Words of close approximity