Meaning of M in English

1. n. (pl. Ms or M's)

1. the thirteenth letter of the alphabet.

2 (as a Roman numeral) 1,000. 2. abbr. (also M.)

1. Master.

2 (in titles) Member of.

3 Monsieur.

4 (in the UK in road designations) motorway.

5 mega-.

6 Chem. molar.

Oxford English vocab.      Оксфордский английский словарь.