From WordNet (r) 3.0 (2006):
m
adj 1: denoting a quantity consisting of 1,000 items or units
[syn: thousand, one thousand, 1000, m, k]
n 1: the basic unit of length adopted under the Systeme
International d'Unites (approximately 1.094 yards) [syn:
meter, metre, m]
2: concentration measured by the number of moles of solute per
liter of solution [syn: molarity, molar concentration,
M]
3: the cardinal number that is the product of 10 and 100 [syn:
thousand, one thousand, 1000, M, K, chiliad, G,
grand, thou, yard]
4: a unit of information equal to 1000 kilobytes or 10^6
(1,000,000) bytes [syn: megabyte, M, MB]
5: a unit of information equal to 1024 kibibytes or 2^20
(1,048,576) bytes [syn: megabyte, mebibyte, M, MB,
MiB]
6: the 13th letter of the Roman alphabet [syn: M, m]