(archaic) second person personal pronoun: you

root (of a plant); (frequently) tree roots above the surface of the ground / root (of an issue), foundation, origin

大敵: powerful enemy / 対敵: confronting the enemy

油断大敵: there's many a slip twixt cup and lip, carelessness is what will get you into trouble; security is the greatest enemy; Idleness is the devil's workshop

急性心筋梗塞: acute myocardial infarction, AMI

気温: air temperature, atmospheric temperature, ambient temperature / 基音: (music) fundamental pitch, ground note

貴重: valuable

貴重: being precious / 基調: keynote, tone of a presentation, basic color of a painting / 機長: pilot / 記帳: registry, book-keeping / 帰朝: returning from abroad / 几帳: screen

基準, 規準: standard, norm / 帰順: submission to a power, return to allegiance

帰順: submit to a government or ruler