трещо́тка

nounfeminineinanimatecountablevery rarely used (#56278)

1.
ratchet
2.
rattle
3.
Ratchet (tool), ratchet wrench, ratchet handle
Мне нужна трещотка с головками на 10 и 13 мм. Ты можешь дать мне трещотку и удлинитель?
I need a ratchet with 10 mm and 13 mm sockets. Can you give me the ratchet and the extension?
This is a mechanical tool used in workshops and mechanics — often part of a ratchet wrench or socket wrench.
4.
Chatterbox
Она милая, но когда начинает болтать — настоящая трещотка.
She’s sweet, but once she starts talking, she’s a real chatterbox.
5.
Ratchet (musical instrument), clapper
Дети шумели трещотками на карнавале.
The kids were making noise with their ratchets/clappers at the carnival.
This is a percussion instrument, usually made of wood. It makes a loud clicking or rattling sound when spun — commonly used for sound effects or in rituals/festivals.

Declension

трещо́ткаratchet; rattle; Ratchet (tool); Chatterbox; Ratchet (musical instrument)
nounfeminine