The interjection 嗯 (ǹg or ēn) is a versatile conversational particle used to express agreement, acknowledgment, or hesitation. Its meaning depends on tone: a falling tone suggests agreement or confirmation, while a rising tone can indicate questioning or hesitation. It is extremely common in spoken Chinese and informal writing.
嗯,我觉得你说得有道理。
Ǹg, wǒ juéde nǐ shuō de yǒu dàolǐ.
Hmm, I think what you said makes sense.
嗯,让我想想再回答你。
Ǹg, ràng wǒ xiǎngxiǎng zài huídá nǐ.
Hmm, let me think about it before I answer you.
嗯,好的,我马上就来。
Ǹg, hǎo de, wǒ mǎshàng jiù lái.
Hmm, okay, I'll be right there.