(linguistics) a morphological change of an initial syllable of the second kanji under the influence of the historical coda of the first kanji in a word, such as 天皇, whose pronunciation is not *ten’ō but tennō.

a male given name

(education) excellence

(mahjong) Short for 断么九 (tan'yaochū): a 役 (yaku, “winning hand”) without any terminal or honor tiles, worth 1 翻 (han, “double”)