一色同順いっしょくどうじゅんpure double chowwinning hand containing two identical chows (i.e. same numbers and same suit)
一色二順いっしょくリャンじゅんpure double chowwinning hand containing two identical chows (i.e. same numbers and same suit)
一盃イーペー略語pure double chowwinning hand containing two identical chows (i.e. same numbers and same suit)