forge vs handbuild

forge is a noun but handbuild is not a noun.

Word	Noun	Adjective	Verb	Adverb
forge	Yes	No	Yes	No
handbuild	No	No	Yes	No

As verbs, handbuild is a hyponym of forge; that is, handbuild is a word with a more specific, narrower meaning than forge:

forge (noun)	handbuild (noun)
a workplace where metal is worked by heating and hammering
furnace consisting of a special hearth where metal is heated before shaping

forge (verb)	handbuild (verb)
create by hammering	make without a potter's wheel
make a copy of with the intent to deceive
make out of components (often in an improvising manner)
make something, usually for a specific function
come up with (an idea, plan, explanation, theory, or principle) after a mental effort
move or act with a sudden increase in speed or energy
move ahead steadily