Meaning of “pay (sth) out” - Learner’s Dictionary

pay (sth) out

phrasal verb with pay uk us /peɪ/ verb (past tense and past participle paid)

to spend a lot of money on something, or to pay a lot of money to someone:

I've just paid out £700 to get the car fixed.

(Definition of “pay (sth) out” from the Cambridge Learner’s Dictionary © Cambridge University Press)