右小括弧[migishoukakko] closing parenthesis
右中括弧[migichuukakko] closing brace
円弧[enko] arc
括弧[kakko] parentheses
丸括弧[marugakko] parentheses

弧城[kojou] solitary castle
弧を描く[kowoegaku] to draw an arc (e.g. with a compass)
弧光[kokou] arc light
弧状[kojou] in form of arch
弧線[kosen] arc (of a circle)

アーク灯[aakutou] arc light
灯影[hokage] firelight
懐中電灯[kaichuudentou] electric torch
外灯[gaitou] outside light
街灯[gaitou] street light

幻灯[gentou] slide projector
行灯[andon] fixed paper-enclosed lantern
信号灯[shingoutou] signal light
石灯籠[ishitourou] stone lantern
船灯[sentou] ship's lamp