domestic vs internal

domestic is a noun but internal is not a noun.

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

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

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