Real Dictionary

-mo in American English
a book, pamphlet, etc. having (a specified number of) leaves as a result of the folding of a sheet of paper a given number of times
suffix: a suffix occurring in a series of compounds that describe book sizes according to the number of leaves formed by the folding of a single sheet of paper

-mo in British English
suffix forming nouns: (in bookbinding) indicating book size by specifying the number of leaves formed by folding one sheet of paper

m.o. in American English
abbreviation: mail order

m.o. in British English
abbreviation for: mail order

megohm in British English
noun: one million ohms

mo
singular noun: A mo is a very short length of time. It is short for moment.

MO in American English
Medical Officer
abbreviation: method of operation
noun
the chemical symbol for: molybdenum

Mo in American English 1
Missouri
moment (sense 1)

Mo in American English 2
molybdenum
money order

Mo in British English
abbreviation for: Missouri
the chemical symbol for: molybdenum

mo in British English 1
noun

mo in British English 2
the internet domain name for: Macau

mo. in American English
abbreviation: Missouri
abbreviation: month

Mo. in British English
abbreviation for: Missouri
noun: a state of the central US: consists of rolling prairies in the north, the Ozark Mountains in the south, and part of the Mississippi flood plain in the southeast, with the Mississippi forming the E border; chief US producer of lead and barytes. Capital: Je

MΩ in British English
symbol for: megohm