A joint or seam where two parts are joined together; the joining point on fabrics, wood, metal, walls, etc.
ズボンの継ぎ目がほつれてきたので直さないといけない。
The seam of my pants is coming apart, so I need to fix it.
壁の継ぎ目に小さなひびが入っているのが見える。
You can see a small crack at the joint in the wall.
板を継ぎ目なくつなげて床を作った。
We joined the boards without visible seams to make the floor.