defend vs defendant

defend is not a noun while defendant is a noun.

Word	Noun	Adjective	Verb	Adverb
defend	No	No	Yes	No
defendant	Yes	No	No	No

defend (noun)	defendant (noun)
	a person or institution against whom an action is brought in a court of law; the person being sued or accused

defend (verb)	defendant (verb)
argue or speak in defense of
state or assert
be on the defensive; act against an attack
protect against a challenge or attack
protect or fight for as a champion
fight against or resist strongly
be the defense counsel for someone in a trial