schoolmistress vs schoolma'am

schoolmistress and schoolma'am both are nouns.

Word	Noun	Adjective	Verb	Adverb
schoolmistress	Yes	No	No	No
schoolma'am	Yes	No	No	No

As nouns, schoolmistress and schoolma'am are synonyms defined as:

schoolmistress and schoolma'am: a woman schoolteacher (especially one regarded as strict)

Other synonyms of schoolmistress include mistress, schoolmarm.

schoolmistress (noun)	schoolma'am (noun)
a woman schoolteacher (especially one regarded as strict)	a woman schoolteacher (especially one regarded as strict)