Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun overpayment

2 senses of overpayment

Sense 1
overpayment -- (a payment larger than needed or expected)
       => payment -- (a sum of money paid or a claim discharged)

Sense 2
overpayment -- (the act of paying too much)
       => payment, defrayal, defrayment -- (the act of paying money)