go in

/G OW1 IH0 N/
verb
  1. 1

    To begin or become involved in some activity.

  2. 2

    To share in part of a project's or plan's duties or costs.

  3. 3

    (of a fact or concept) To become understood or accepted.

  4. 4

    (of the sun, moon or stars) To become obscured by clouds.

  5. 5

    To perform invasive surgery.

  6. 6

    (dated) To beat up or attack.

  7. 7

    Used other than figuratively or idiomatically: see go, in.