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

虞美人草[gubijinsou] field poppy
不虞[fugu] emergency
危虞[kigu] apprehensions
失敗の虞[shippainoosore] risk of failure

憂虞[yuugu] anxiety
虞犯少年[guhanshounen] juvenile likely to commit a crime
虞犯[guhan] likelihood of committing a crime