domestic vs housemaid

domestic and housemaid both are nouns.

Word	Noun	Adjective	Verb	Adverb
domestic	Yes	Yes	No	No
housemaid	Yes	No	No	No

As nouns, housemaid is a hyponym of domestic; that is, housemaid is a word with a more specific, narrower meaning than domestic:

domestic: a servant who is paid to perform menial tasks around the household
housemaid: a female domestic

Other hyponyms of domestic include ayah, home help, housekeeper, amah, maid, maidservant, skivvy, slavey.

domestic (noun)	housemaid (noun)
a servant who is paid to perform menial tasks around the household	a female domestic

domestic (adjective)	housemaid (adjective)
of concern to or concerning the internal affairs of a nation
of or involving the home or family
of or relating to the home
produced in a particular country
converted or adapted to domestic use