defend vs defence

defend is not a noun while defence is a noun.

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

defend (noun)	defence (noun)
	(military) military action or resources protecting a country against potential enemies
	the act of defending someone or something against attack or injury
	a defendant's answer or plea denying the truth of the charges against him
	protection from harm
	a structure used to defend against attack
	the justification for some act or belief
	the speech act of answering an attack on your assertions
	the defendant and his legal advisors collectively
	(sports) the team that is trying to prevent the other team from scoring
	an organization of defenders that provides resistance against attack
	(psychiatry) an unconscious process that tries to reduce the anxiety associated with instinctive desires

defend (verb)	defence (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