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# mm

abbreviation (mm); interjection (mm, mmm)

«mm» in the English dictionary: everyday — its meanings, how the lessons use it, and examples, each with its tree on Mova.

## Everyday

1. Mm is the short way to write millimetre, a very tiny unit of length. A centimetre has 10 millimetres. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#m1)
2. «Mm» or «mmm» is also a sound people make to say yes, to think, or to say food is tasty. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#m2)

### In the lessons

a unit of length for small things: pencil leads, rain, insects, lines on a ruler; in science rainfall and small parts are measured in mm; in stories «Mmm!» shows something tastes good

### Examples

- The line is 45 mm long. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x1)
- It rained 12 mm today. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x2)
- A coin is 2 mm thick. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x3)
- How many mm are in 3 cm? [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x4)
- The ant is about 5 mm long. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x5)
- The small marks on a ruler are millimetres. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x6)
- "Mmm, this soup is yummy!" said Ella. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x7)
- "Mm-hm," said Dad, nodding. [tree →](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/#x8)

### Note

Read «mm» as «millimetres»; it names the unit of the number before it. 10 mm = 1 cm, 1000 mm = 1 m. Trap: change units before adding mm to cm; mm is not m (metres).

## On Mova

- [Trees and pragmatics of «mm» in the school dictionary](https://mova.elamur.ai/free/en/corpora/dictionaries/school/M/mm/): every meaning and example parsed by Mova, with its dependency tree and frames.
- [«mm» in the school dictionary](https://mova.elamur.ai/free/en/dictionaries/school/w/mm.html) on Mova free.