defender
n//dɪˈfɛndə(ɹ)//försvarare, back
Someone who defends people or property.
A fighter who seeks to repel an attack.
(law, rare) A lawyer who represents defendants, especially a public defender; a defense attorney (US) or defence counsel (UK).
(Scots law) A defendant in a civil action.
(sports) One of the players whose primary task is to prevent the opposition from scoring.