embouchure

English Thesaurus

1. the aperture of a wind instrument into which the player blows directly (noun.artifact)

hypernym	:	aperture,
definition	:	an man-made opening; usually small (noun.artifact)

part meronym	:	wind, wind instrument,
definition	:	a musical instrument in which the sound is produced by an enclosed column of air that is moved by the breath (noun.artifact)