pay in

:  to make due return to for services rendered or property delivered

:  to engage for money :  hire

:  to give in return for goods or service

:  something paid for a purpose and especially as a salary or wage :  remuneration

:  the act or fact of paying or being paid

:  the status of being paid by an employer :  employ

:  containing or leading to something precious or valuable

:  equipped with a coin slot for receiving a fee for use

:  requiring payment

:  to coat with a waterproof composition