tune in

tune in idiom
  1. Adjust a receiver to receive a particular program or signals at a particular frequency, as in Tune in tomorrow, folks, for more up-to-date news. [Early 1900s]
  2. Be aware or responsive, as in She's really tuned in to teenagers. [1920s] For an antonym, see tune out.

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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