defender
[noun]
Synonyms:
- protector, bodyguard, escort, guard
- supporter, advocate, champion, sponsor

[TahlilGaran] English Synonym Dictionary ▲

de‧fend‧er /dɪˈfendə $ -ər/ noun [countable]
[Word Family: noun: DEFENCE/DEFENSE, defendant, defender, defensiveness; adjective: DEFENCELESS/DEFENSELESS, defensible ≠ indefensible, defensive; adverb: defensibly ≠ indefensibly, defensively; verb: defend]

1. one of the players in a game such as football who have to defend their team’s goal from the opposing team:
It’s his fourth season as an Arsenal defender.

2. someone who defends a particular idea, belief, person etc:
He presented himself as a defender of democracy.

[TahlilGaran] Dictionary of Contemporary English ▲