sound hole

English Thesaurus

1. a hole in a soundboard (as of a violin) designed to resonate with the tones (noun.artifact)

hypernym	:	hole,
definition	:	an opening deliberately made in or through something (noun.artifact)

part meronym	:	soundboard, sounding board,
definition	:	(music) resonator consisting of a thin board whose vibrations reinforce the sound of the instrument (noun.artifact)