expression, godan verb (-su)
finish one's work; get one's work done
A common expression meaning to complete one's tasks or duties. Often used when wrapping up for the day or finishing a specific assignment.
今日中に仕事を済ませてしまおう。
Let's finish our work by the end of today.
彼はさっさと仕事を済ませて帰った。
He quickly finished his work and went home.