chantaiyao; outside hand
Mahjong term; abbreviation of 混全帯公九 (ホンチャンタイヤオチュウ). A hand where every set contains at least one terminal (1 or 9) or honor tile.
See also: 混全帯么九 (ホンチャンタイヤオチュウ)
Chanta is not a yakuman, but it's one of the easier hands to build.
彼はチャンタを狙って、端牌と字牌を集めた。
He aimed for a chanta and collected terminals and honors.