(archaic) the world in which people live; the world, society

(dated, rare) a place devoid of people

mineral water (water containing dissolved minerals)

(mahjong) a winning hand using special rules; worth 48,000 points if the winning player is on the East (dealer) side or 32,000 points otherwise

importance

healthy, healthy, hygienic, healthful

physical examination, medical examination

physical examination, medical examination

necessity (quality or state of being necessary, unavoidable, or absolutely requisite)

unnecessary