m
1Save This Word!
abbreviation
QUIZ
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Test how much you really know about regular and irregular plural nouns with this quiz.
Question 1 of 9
Which of the following nouns has an irregular plural form?
Other definitions for m (2 of 14)
m2
Symbol, Electricity.
magnetic pole strength.
Other definitions for m (3 of 14)
Other definitions for m (4 of 14)
M1
or m
[ em ]
/ ɛm /
noun, plural M's or Ms, m's or ms.
the thirteenth letter of the English alphabet, a consonant.
any spoken sound represented by the letter M or m, as in my, summer, or him.
something having the shape of an M.
a written or printed representation of the letter M or m.
a device, as a printer's type, for reproducing the letter M or m.
Printing. em.
Other definitions for m (5 of 14)
M2
abbreviation
Other definitions for m (6 of 14)
M3
Symbol.
the thirteenth in order or in a series.
Electricity. magnetization (def. 2).
Biochemistry. methionine.
Other definitions for m (7 of 14)
Other definitions for m (8 of 14)
m-
(referring especially to the use of wireless electronic devices) mobile: m-commerce; m-business.
Other definitions for m (9 of 14)
M-
U.S. Military. (used to designate the production model of military equipment, as the M-1 rifle.)
Other definitions for m (10 of 14)
m.1
abbreviation
noon.
Origin of m.
1From the Latin word merīdiēs
Other definitions for m (11 of 14)
m.2
abbreviation
(in prescriptions) mix.
Origin of m.
2From the Latin word misce
Other definitions for m (12 of 14)
m.3
abbreviation
Other definitions for m (13 of 14)
M.1
or m.
abbreviation
noon.
Origin of M.
1From the Latin word merīdiēs
Other definitions for m (14 of 14)
M.2
abbreviation
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2022
How to use m in a sentence
British Dictionary definitions for m (1 of 9)
m
symbol for
metre(s)
mile(s)
milli-
minute(s)
British Dictionary definitions for m (2 of 9)
m
M
/ (ɛm) /
noun plural m's, M's or Ms
the 13th letter and tenth consonant of the modern English alphabet
a speech sound represented by this letter, usually a bilabial nasal, as in mat
British Dictionary definitions for m (3 of 9)
'm
contraction of
(verb) am
(noun) madamyes'm
British Dictionary definitions for m (4 of 9)
M
symbol for
abbreviation for
Malta (international car registration)
British Dictionary definitions for m (5 of 9)
British Dictionary definitions for m (6 of 9)
m-
prefix
indicating the use of mobile-communications technologym-banking
British Dictionary definitions for m (7 of 9)
British Dictionary definitions for m (8 of 9)
m.
abbreviation for
cricket maiden (over)
male
mare
married
masculine
British Dictionary definitions for m (9 of 9)
M.
abbreviation for
Majesty
(in titles) Member
million
Also: M plural MM or MM French Monsieur
mountain
Word Origin for M.
sense 4) French equivalent of Mr
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Medical definitions for m (1 of 3)
m
abbr.
mass
meter
Medical definitions for m (2 of 3)
M
abbr.
molar1
molarity
morgan
myopia
Medical definitions for m (3 of 3)
m-
abbr.
meta-
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Scientific definitions for m
m
Abbreviation of mass, meter
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.