Ma is a anagram of am.

As proper nouns the difference between am and ma

is that am is abbreviation of Amazonas|lang=en state of Brazil while Ma is {{surname|common|from=Chinese}} of East Asian derivation.

As abbreviations the difference between am and ma

is that am is shortened form of America or American, particularly as used in commercial names while MA is massachusetts, a state of the United States of America.

As an initialism AM

is (Sometimes lower case) From Latin ante meridiem, meaning "before noon (12:00)".

As a verb am

is inflection of 1 sg pres indc lang=en.

As an adverb am

is an alternative spelling of a.m.|lang=en.

As an acronym ma is

milli-arcsecond.

As a noun ma is

mother, mama.