A more thorough explanation:

pay

Pay means to give someone the money that you owe them.

• John needs to pay his rent to his landlord every month.
• Sarah will pay her friend back for the concert ticket she bought for her.
• The company will pay its employees for their work at the end of the month.

These examples show how pay means to give someone the money that is owed to them. John owes his landlord rent money, so he needs to pay it to him. Sarah owes her friend money for the concert ticket, so she will pay her back. The company owes its employees money for their work, so they will pay them at the end of the month.