Attacker and Initiator

Attacker noun - One who violently sets upon another.

Initiator and attacker are semantically related. In some cases you can use "Initiator" instead a noun "Attacker".

Nearby Words: attack, attacked, attacking, attackable

Initiator noun - A person who establishes a whole new field of endeavor.

Attacker and initiator are semantically related. Sometimes you can use "Attacker" instead a noun "Initiator".

Nearby Words: initiate, initiative, initiation, initiated, initiatory