済ます

すます · sumasu · JLPT N1 · verb-godan

to finish; to settle; to do without

🧾 済 = settle: 返済 = pay back to settle; 済ます = settle the bill, finish up

Use it to finish a task, pay the bill (お会計を済ます), or make do without something (なしで済ます). In each case the matter gets closed out.