mm-hmm

UK: ˌmːˈhːm | US: ˌmːˈhːm

Definition

  1. interj. an informal vocalization used to express agreement, acknowledgment, or casual affirmation

Structure
mm <humming sound>hmm <thoughtful hum>
Etymology

"Mm-hmm" is an example of reduplicative vocalization, where sounds are repeated or combined to create expressive interjections. The first part "mm" mimics a humming sound of agreement, while "hmm" adds a slightly more engaged or thoughtful tone. This construction follows the pattern of many English vocalizations (e.g., "uh-huh," "nuh-uh") that use nasal sounds to convey basic responses without formal words. Its spelling attempts to phonetically capture the closed-mouth murmurs typical in casual conversation.

Examples

  1. "Do you understand?" she asked, and he replied "mm-hmm" without looking up.

  2. The teacher continued lecturing after hearing a quiet "mm-hmm" from the class.

  3. "Mm-hmm, I see what you mean," he nodded while scrolling on his phone.

  4. Her "mm-hmm" sounded more like polite disinterest than actual agreement.

  5. The audio transcript noted "[mm-hmm]" wherever participants voiced acknowledgment.