(mahjong) short hand (illegal hand containing too few tiles)

(mahjong) being one tile away from completing a hand

(mahjong) to be one tile away from completing a hand

(mahjong) long hand (illegal hand containing too many tiles)

(mahjong) flower tile (included in mahjong sets, but not used in Japanese mahjong gameplay)

Short for 安全牌 (anzenpai).

(mahjong) a tile that one can safely discard, as it cannot become an opponent's advantage / (slang, by extension) a safe choice

a red sun, a bright sun, or the summer sun / a day in the traditional Japanese six-day week which is unlucky except for at noon

(idiomatic) a complete stranger

red light of traffic lights, red signal