(noun, adjective, verb)


1. (Ireland, colloquial) comical, zany.

- Mary's new boyfriend is a gas man.

- It was gas when the bird flew into the classroom.


1. the state of matter distinguished from the solid and liquid states by: relatively low density and viscosity; relatively great expansion and contraction with changes in pressure and temperature; the ability to diffuse readily; and the spontaneous tendency to become distributed uniformly throughout any container

Definition categories: state

2. a fluid in the gaseous state having neither independent shape nor volume and being able to expand indefinitely

Definition categories: substance, fluid

3. a volatile flammable mixture of hydrocarbons (hexane and heptane and octane etc.) derived from petroleum; used mainly as a fuel in internal-combustion engines

Similar word(s): gasolene, gasoline, petrol

Definition categories: substance, fuel, hydrocarbon

4. a state of excessive gas in the alimentary canal

Similar word(s): flatulence, flatulency

Definition categories: state

5. a pedal that controls the throttle valve

- he stepped on the gas

Similar word(s): accelerator, gun, throttle

Definition categories: man–made, pedal, treadle

6. a fossil fuel in the gaseous state; used for cooking and heating homes

Definition categories: substance

Sentences with gas as a noun:

- A lot of gas had escaped from the cylinder.

- The atmosphere is made up of a number of different gases.

- Gas-fired power stations have largely replaced coal-burning ones.

- She turned the gas on, put the potatoes on, then lit the oven.

- My tummy hurts so bad, I have gas.

- He is such a gas!

- The closer threw him nothing but gas.


1. attack with gas; subject to gas fumes

- The despot gassed the rebellious tribes

Definition categories: competition, assail, attack

2. show off

Similar word(s): blow, bluster, boast, brag, gasconade, swash, tout, vaunt

Definition categories: communication, amplify, exaggerate, hyperbolise, hyperbolize, magnify, overdraw, overstate

Sentences with gas as a verb:

- The battery cell was gassing.

- to gas lime with chlorine in the manufacture of bleaching powder

- to gas thread

- The cops are coming. Gas it!