internal vs domestic

internal is not a noun while domestic is a noun.

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

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

internal (adjective)	domestic (adjective)
happening or arising or located within some limits or especially surface	of concern to or concerning the internal affairs of a nation
inside the country	of or involving the home or family
occurring within an institution or community	of or relating to the home
innermost or essential	produced in a particular country
located inward	converted or adapted to domestic use