sub

/sʌb/ noun [C] informal

Definition

› subscription: You can save up to £20 if you pay your subs by direct debit.

› substitute noun: There is a great need both for permanent teachers and subs.

› payment that your employer gives you earlier than usual because you need money: I ran out of money on Thursday and had to ask my boss for a sub.

(Definition of sub noun from the Cambridge Business English Dictionary © Cambridge University Press)

to do something without worrying about the risk or negative results

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