attacker
[noun]
Synonyms: assailant, aggressor, assaulter, intruder, invader, raider

[TahlilGaran] English Synonym Dictionary ▲

at‧tack‧er /əˈtækə $ -ər/ noun [countable]
[Word Family: noun: attack, counterattack, attacker; verb: attack, counterattack; adjective: attacking, counterattacking]

1. a person who deliberately uses violence to hurt someone:
Her attacker then dragged her into the bushes.
a sex attacker

2. a member of a sports team whose job is to move forward and try to score goals or win points ⇒ defender

[TahlilGaran] Dictionary of Contemporary English ▲