- tuba
- (informal) the tuba, a low-pitched brass instrument used in orchestras; also called 大号 dàhào or 低音号 dīyīnhào
- blabbermouth
- (metaphor) a person who likes to spread rumors or gossip; someone who cannot keep a secret
- loudspeaker
- a large outdoor horn loudspeaker, especially one used for public announcements in rural areas or construction sites
