1noun
a metric unit of length equal to one thousandth of a meter
01 Word definition
mm
2 letters · 0 vowels · 2 consonants
Is MM a word?
Yes. MM is a 2-letter noun. a metric unit of length equal to one thousandth of a meter Check the official dictionary for your particular word game before playing it.
Correct spelling
M-MHow do you spell MM?
MM contains 2 letters, begins with M, and ends with M.
Check another spelling →Meaning and definition
Synonyms
Source: Open English WordNet 2025 (CC BY 4.0) ↗millimetermillimetre
02 Letter breakdown
How is MM spelled?
M1M2
03 Word-game status
Can you play MM?
UnscramblerHQ dictionary
This spelling is present in our broad English solver dictionary.
Scrabble
Base tile value: 6 points. Confirm eligibility in the official word list used for your region and edition.
Words With Friends
Base tile value: 8 points. Confirm eligibility inside the current game dictionary.
FAQ Quick answers
About MM.
How do you spell MM?
MM is spelled M-M. It contains 2 letters.