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keep a straight face

Don't show one's feelings, especially refrain from laughing. For example, The school orchestra played so many wrong notes that I had trouble keeping a straight face. [Late 1800s]

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Nearby words

  1. keep,
  2. keep a civil tongue in one's head,
  3. keep a low profile,
  4. keep a sharp lookout,
  5. keep a stiff upper lip,
  6. keep a weather eye out,
  7. keep abreast of,
  8. keep after,
  9. keep an eye on,
  10. keep an eye out for
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.