borer vs bore

borer and bore both are nouns.

Word	Noun	Adjective	Verb	Adverb
borer	Yes	No	No	No
bore	Yes	No	Yes	No

borer (noun)	bore (noun)
any of various insects or larvae or mollusks that bore into wood	a hole or passage made by a drill; usually made for exploratory purposes
a drill for penetrating rock	diameter of a tube or gun barrel
	a high wave (often dangerous) caused by tidal flow (as by colliding tidal currents or in a narrow estuary)
	a person who evokes boredom

borer (verb)	bore (verb)
	make a hole, especially with a pointed power or hand tool
	cause to be bored