go in

Verb

 * It's getting cold. Let's go in.
 * 1) To become obscured by clouds.
 * It's chilly now the sun's gone in.
 * 1) To share in part of a project's or plan's duties or costs.
 * If you guys are fixing up that boat together to share it, I'll  go in too.
 * 1)  To become understood or accepted.
 * You have to tell him a hundred times if you want it to go in.
 * 1) To perform invasive surgery.
 * 2)  To beat up or attack.
 * You went in on him with a knife?
 * 1)  To beat up or attack.
 * You went in on him with a knife?
 * You went in on him with a knife?