also: タチャ
noun
the other three players; opponents (in mahjong)
Mahjong term referring to the three players other than oneself. From Chinese 'tā jiā'.
from Chinese tā jiā
他家の捨て牌をよく見て、安全牌を判断する。
Watch the other players' discards carefully to determine safe tiles.
他家がリーチをかけたら、振り込まないように注意する。
When an opponent declares riichi, be careful not to deal into their hand.
Borrowed from Chinese 'tā jiā' (他家), meaning 'other families/houses', adapted into mahjong terminology to refer to the other players.