bend vs bender

bend and bender both are nouns.

Word	Noun	Adjective	Verb	Adverb
bend	Yes	No	Yes	No
bender	Yes	No	No	No

bend (noun)	bender (noun)
curved segment (of a road or river or railroad track etc.)	revelry in drinking; a merry drinking party
diagonal line traversing a shield from the upper right corner to the lower left	a pitch of a baseball that is thrown with spin so that its path curves as it approaches the batter
movement that causes the formation of a curve	a tool for bending
an angular or rounded shape made by folding
a circular segment of a curve

bend (verb)	bender (verb)
cause (an object) to assume a crooked or angular form
bend a joint
form a curve
change direction
turn from a straight course, fixed direction, or line of interest
bend one's back forward from the waist on down