gas
noun
[ ɡas ]
• a substance or matter in a state in which it will expand freely to fill the whole of a container, having no fixed shape (unlike a solid) and no fixed volume (unlike a liquid).
• "hot balls of gas that become stars"
• short for gasoline.
• "we stopped for gas"
• an entertaining or amusing person or situation.
• "the party would be a gas"
gas
verb
• kill or harm by exposure to gas.
• "my son was gassed at Verdun"
• talk excessively about trivial matters.
• "I thought you'd never stop gassing"
• fill the tank of (a motor vehicle) with petrol.
• "after gassing up the car, he went into the restaurant"
gas
adjective
• very amusing or entertaining.
• "Ruthie, that's gas—you're a gem"
Origin:
mid 17th century: invented by J. B. van Helmont (1577–1644), Belgian chemist, to denote an occult principle which he believed to exist in all matter; suggested by Greek khaos ‘chaos’, with Dutch g representing Greek kh .