gunwale vs gun rest

gunwale and gun rest both are nouns.

Word	Noun	Adjective	Verb	Adverb
gunwale	Yes	No	No	No
gun rest	Yes	No	No	No

As nouns, gunwale and gun rest are synonyms defined as:

gunwale and gun rest: wale at the top of the side of boat; topmost planking of a wooden vessel

Other synonyms of gunwale include gunnel.

gunwale (noun)	gun rest (noun)
wale at the top of the side of boat; topmost planking of a wooden vessel	wale at the top of the side of boat; topmost planking of a wooden vessel