HMM

hmm

Verb

  1. To make a thoughtful humming noise.

Interjection

  1. Indicating thinking or pondering.
    Hmm... that's an interesting idea.
    Hmm... I just can't decide between the two.
  2. A demand for an answer to a question.
    ''Just where were you until 2 a.m.? ... Hmm?


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