A person who is deaf; often considered disrespectful or impolite when used directly to someone's face

to set off (fireworks); to fire (a gun); to emit (light or sound); to play (a movie or recording)

Paper tube filled with gunpowder that explodes with a loud bang when lit, used during festivals or celebrations; also written as 爆竹 bào​zhú or 鞭炮 biān​pào