attack vs attacker

attack and attacker both are nouns.

Word	Noun	Adjective	Verb	Adverb
attack	Yes	No	Yes	No
attacker	Yes	No	No	No

attack (noun)	attacker (noun)
(military) an offensive against an enemy (using weapons)	someone who attacks
a decisive manner of beginning a musical tone or phrase
the act of attacking
ideas or actions intended to deal with a problem or situation
an offensive move in a sport or game
strong criticism
intense adverse criticism
the onset of a corrosive or destructive process (as by a chemical agent)
a sudden occurrence of an uncontrollable condition

attack (verb)	attacker (verb)
begin to injure
set to work upon; turn one's energies vigorously to a task
attack in speech or writing
launch an attack or assault on; begin hostilities or start warfare with
take the initiative and go on the offensive
attack someone physically or emotionally