expression, godan verb (-su)
pay one's bill; settle the account
Used when paying a bill at a restaurant, bar, or similar establishment. 済ます implies finishing the payment obligation.
食事が終わったら、レジで勘定を済ませてください。
After you finish eating, please pay your bill at the register.
彼はさっと勘定を済ま
He quickly settled the bill and left the restaurant.