noun pl. M's, m's

1. the thirteenth letter of the English alphabet: from the Greek mu, derived ultimately from the Phoenician
2. any of the speech sounds that this letter represents, as, in English, the (m) of milk or stratagem
3. a type or impression for m or M
4. the thirteenth in a sequence or group
5. Printing an em (Example: a “ dash” is a dash that is one em long)
6. an object shaped like

adjective

1. of m or M
2. thirteenth in a sequence or group
3. shaped like

1. male
2. manual
3. mark (a coin)
4. married
5. masculine
6. Physics
   1. mass
   2. modulus
7. medium
8. meridian
9. meter(s)
10. mile(s)
11. mill(s)
12. milli-
13. million(s)
14. minim
15. minute(s)
16. month
17. moon
18. morning

19. Etymology: see M (sense )

    noon a.m., p.m.

noun

1. Bible Maccabees
2. male
3. Manitoba
4. March
5. mark (a coin)
6. Marquis
7. married
8. May
9. medieval
10. medium
11. mega-
12. Astron. Messier catalog
13. Chem. metal
14. Music mezzo
15. Physics momentum
16. Monday
17. Monsieur
18. Elec. mutual inductance

19. Etymology: L meridies

    noon A.M., P.M.