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

一揆[ikki] uprising (esp. in Japan since middle ages, e.g. peasant uprising)
百姓一揆[hyakushouikki] peasant's revolt
農民一揆[nouminikki] agrarian revolt or uprising
徳政一揆[tokuseiikki] uprising (during the Muromachi period) demanding debt cancellation orders

ミュンヘン一揆[myunhenikki] Beer Hall Putsch (1923)
一向一揆[ikkouikki] Jodo Shinshu Buddhist uprising (Muromachi and Warring States periods)
土一揆[tsuchiikki] peasant uprising (Muromachi period)
国一揆[kuniikki] province-wide uprising (Muromachi period)