黙もく礼れい

も

く

れ

い

Meanings

1

noun, noun or participle which takes 'suru', intransitive verb

silent bow

A bow performed without speaking, often as a respectful greeting or acknowledgment.

会え釈しゃく
会釈 is a slight bow, often casual, while 黙礼 emphasizes the silence and can be more formal.
お辞じ儀ぎ
お辞儀 is a general term for bowing, not necessarily silent; 黙礼 specifically highlights the absence of words.

Compound of 黙 (もく, 'silence') and 礼 (れい, 'bow, courtesy').