安危[anki] fate
危うい[ayaui] dangerous
危うく[ayauku] barely
危ない[abunai] dangerous
危ながる[abunagaru] to be afraid of

危なっかしい[abunakkashii] dangerous
危ぶむ[ayabumu] to fear
危める[ayameru] to wound
危絵[abunae] suggestive or indecent picture
危害[kigai] injury

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)

一括[ikkatsu] all together
一括め[hitokurume] one bunch
一括り[hitokukuri] lump together
一括式[ikkatsushiki] batch mode
右小括弧[migishoukakko] closing parenthesis

右中括弧[migichuukakko] closing brace
概括[gaikatsu] summary
括りつける[kukuritsukeru] to fasten (a person) to
括る[kukuru] to tie up
括弧[kakko] parentheses

懸鉤子[kiichigo] raspberry (any plant of genus Rubus, esp. Rubus palmatus var. coptophyllus)
鉤括弧[kagikakko] square bracket
釣鉤[tsuribari] fish hook
鉤針[kagibari] hook

手鉤[tekagi] short gaff
鉤十字[kagijuuji] swastika
鉤の手[kaginote] right-angled bend
鉤虫[kouchuu] hookworm