moment vs mo

moment and mo both are nouns.

Word	Noun	Adjective	Verb	Adverb
moment	Yes	No	No	No
mo	Yes	No	No	No

As nouns, moment and mo are synonyms defined as:

Other synonyms of moment include bit, minute, second.

moment (noun)	mo (noun)
having important effects or influence	an indefinitely short time
the n-th moment of a distribution is the expected value of the n-th power of the deviations from a fixed value
a turning force produced by an object acting at a distance (or a measure of that force)
a particular point in time
an indefinitely short time
at this time