キュウ

いそ.ぐ、いそ.ぎ

急, 𠂊, ⺕, 心

hurry, emergency, sudden, steep

緊急(きんきゅう): urgent; pressing; emergency
急(きゅう): (1) urgent; sudden; abrupt (2) sharp; steep; precipitous (3) rapid; swift; fast (4) emergency; crisis (5) hurrying; haste (6) (in gagaku or noh) end of a song
急速(きゅうそく): rapid (e.g. progress)
急激(きゅうげき): sudden; precipitous; radical
特急(とっきゅう): (1) limited express (train, faster than an express) (2) great hurry
急行(きゅうこう): (1) moving at high speed (2) express (e.g. train that bypasses many stations)
急ぐ(いそぐ): to hurry; to rush; to hasten; to make something happen sooner
早急(さっきゅう): urgent
応急(おうきゅう): emergency; first-aid
至急(しきゅう): urgent; pressing
急かす(せかす): to hurry; to urge on
準急(じゅんきゅう): semi-express train (slower than an express); local express train
急に(きゅうに): (1) swiftly; rapidly (2) suddenly; abruptly; immediately