check into

check into idiom
  1. Investigate something, as in I don't know when they open but I'll check into it. Also see check out.
  2. Register one's arrival at, as in She was about to check into the hospital. Also see check in, def. 1.

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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