gong
US /ɡɑːŋ/
UK /ɡɑːŋ/

1.
gong
a metal disc with a turned rim, giving a resonant note when struck, used as a percussion instrument, for sounding an alarm, or to mark the hours.
:
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The sound of the gong signaled the start of the ceremony.
El sonido del gong marcó el inicio de la ceremonia.
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He struck the large gong with a padded mallet.
Golpeó el gran gong con un mazo acolchado.