gallous vs gallows-tree

gallous and gallows-tree both are nouns.

Word	Noun	Adjective	Verb	Adverb
gallous	Yes	No	No	No
gallows-tree	Yes	No	No	No

As nouns, gallous and gallows-tree are synonyms defined as:

Other synonyms of gallous include gallows tree, gibbet.

gallous (noun)	gallows-tree (noun)
alternative terms for gallows	alternative terms for gallows