house servant vs skivvy

house servant and skivvy both are nouns.

Word	Noun	Adjective	Verb	Adverb
house servant	Yes	No	No	No
skivvy	Yes	No	No	No

As nouns, skivvy is a hyponym of house servant; that is, skivvy is a word with a more specific, narrower meaning than house servant:

house servant: a servant who is paid to perform menial tasks around the household
skivvy: a female domestic servant who does all kinds of menial work

Other hyponyms of house servant include ayah, home help, housekeeper, amah, housemaid, maid, maidservant, slavey.

house servant (noun)	skivvy (noun)
a servant who is paid to perform menial tasks around the household	a female domestic servant who does all kinds of menial work