Have to PAY is a phrase that is used to describe a situation in which someone is obligated to PAY money for something. This phrase can be broken down into two words, 'owe' and 'PAY'. Owe is a three letter word meaning to be indebted or obligated to someone else. PAY is a four letter word meaning to give money in exchange for goods or services. Together, these two words form the phrase 'have to PAY', which is used to describe a situation in which someone is obligated to PAY money for something.