smirk

/smɜːrk/
verb
  1. To smile in a smug, silly, or self-satisfied way.
    • She smirked when she got the last piece of cake.
    • The boy smirked after telling a lie.
    • He smirked at his opponent's mistake.
noun
  1. A smile that is smug, silly, or shows that you think you are better than others.
    • He gave a smug smirk when he heard the news.
    • She couldn't hide the smirk on her face after winning.
    • The teacher saw the student's smirk and knew he was up to something.
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