Urgent
Emergency
noun, な adjective, の adjective
きんきゅう
急 (きゅう) Sudden, Urgent, Emergency, Steep
緊急 (きんきゅう) Urgent, Emergency
切迫 (せっぱく) Urgency, Drawing Near, Impending
非常 (ひじょう) Emergency, Extreme, Unusual
緊急事態 (きんきゅうじたい、not on WK) State Of Emergency, Emergency, Crisis
緊張 (きんちょう) Stress, Tension, Nervous
He's tense 緊 and in a hurry 急 because things are Urgent 緊急