Curve, Curved Line
noun
A bend in a line is merely a curve.
きょくせん
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
このドレスは、体の曲線をキレイに見せてくれる。
This dress makes the curve of the body look beautiful.
曲線を使ったデザインの家具が気に入ってます。
I like furniture with a curved design.
曲線のような花火が夜空を明るくしました。
Fireworks that look like curved lines have brightened the night sky.
この道は曲線が多くて車で走るのがむずかしいです。
This road has a lot of curves and it is difficult to drive by car.