1.an aircraft with a jet engine that is able to fly very fast
a jet plane
a private jet
2.a thin stream of something, such as water or gas, that is forced out of a small hole
She turned on the hose and a jet of water sprayed across the yard.
3.a small hole in a piece of equipment through which gas or another fuel is forced before it is burned
I think the gas jet must be blocked, because the oven won't light.
4.a hard, black stone that shines when it is rubbed and is used to make jewellery and other decorative objects
5.to travel somewhere by plane
I'm jetting off to New Zealand next week.
He's always jetting around the globe.
6.a strong, narrow, continuous flow, esp. of water or gas, that is forced out of a small hole
The whale blew a jet of water into the air.
7.a fast aircraft with a jet engine
He owns a private jet.
8.a hard, black, shiny stone that is used to make jewelry
9.to travel in a jet aircraft
I’m jetting off to LA next week.