There are multiple definitions - click on the translation that matches your context.

adwokat

rzeczownik

full

advocate

noun

Definitions of advocate

English

(SCOTS LAW) a lawyer who represents a client in court (Cf. barrister)

I won't be meeting my advocate again until just before the trial.

English

someone who puts forward a case for another person; a general term for a lawyer

Hayrat is representing the company but his father has come along with him as his advocate.

English

someone who strongly and publicly supports or speaks in favour of someone or something, especially in favour of a particular public plan or action

He was an advocate of equal rights for women.