mo

1 of 6

abbreviation (1)

month

Mo

2 of 6

abbreviation (2)

1

Missouri

2

Monday

Mo

3 of 6

symbol

molybdenum

MO

4 of 6

noun

ˈem-ˈō 

often not capitalized

: modus operandi

MO

5 of 6

abbreviation (3)

1

mail order

2

medical officer

3

Missouri

4

money order

-mo

6 of 6

noun suffix

—after numerals or their names to indicate the number of leaves made by folding a sheet of paper

sixteenmo

16mo

Examples of mo in a Sentence

Noun

two thieves with very different MOs

Word History

Etymology

Noun suffix

duodecimo

First Known Use

Noun

1940, in the meaning defined above

Medical Definition

mo

1 of 3 abbreviation

month

Mo

2 of 3 symbol

molybdenum

MO

3 of 3 abbreviation

medical officer

Legal Definition

MO

abbreviation

modus operandi