(mathematics) any part of a circle or curve, such as a circular arc or parabolic arc

(bound form) shaped like a bow; curved, such as in 弧形 hú​xíng or 弧线 hú​xiàn

(literary) a bow made of wood; a general term for a bow

(bound form) curved punctuation or symbol, such as a bracket used in 括弧 kuò​hú