The katakana syllable ム (mu). Its equivalent in hiragana is む (mu). It is the thirty-third syllable in the gojūon order; its position is マ行ウ段 (ma-gyō u-dan, “row ma, section u”).

初めまして, 始めまして: nice to meet you; how do you do

回転寿司: conveyor belt sushi

(of feudal Japan) Clipping of 刑部省 (Gyōbushō, “Ministry of Justice”). / (history, government, of feudal China) the Ministry of Justice