Third-person singular simple present indicative form of do in

present participle of butt in

past participle of do in

present participle of do in

present participle of believe in

(participial adjective; mechanical, engineering) (sometimes comparative) Having been broken in to seat the parts.

past participle of break in

Part of or privy to involved in, (something private, especially a plan or plot).

Third-person singular simple present indicative form of barge in

(computing) A plug-in.