go in

go in idiom
  1. Enter, especially into a building. For example, It's cold out here, so can we go in? [Tenth century a.d.]
  2. Be obscured, as in After the sun went in, it got quite chilly. [Late 1800s]
  3. go in with. Join others in some venture. For example, He went in with the others to buy her a present. [Late 1800s] Also see the subsequent idioms beginning with go in.

The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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