hmm

باللغة العربية: هُمْم

1. Indicates thinking or pondering. · Hmm... that's an interesting idea.· Hmm... I just can't decide between the two.
2. Indicates surprise or cluelessness; especially a response by a person who is questioned or addressed when not expecting it. · "You there! Where are you going?" "Hmm? Oh, I just need to get a drink."· "Could you pass me the paring knife?" "Hmm? What's a paring knife?"
3. A demand for an answer to a question. · Just where were you until 2 a.m.? Hmm?