Longman Dictionary of Contemporary English homepage

M

 noun
     
Related topics: Numbers, Letters and punctuation
M , m plural M's, m's
1SLA [uncountable and countable] the 13th letter of the English alphabet
2HMN [countable] the number 1000 in the system of roman numerals
3

M6, M25 etc

the name of a motorway in Britain
Definition from the Longman Dictionary of Contemporary English
Advanced Learner's Dictionary.

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