bore vs borer

bore and borer both are nouns.

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

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

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