(Roman mythology) The god-personification of the bright, glowing upper air of heaven. He is the Roman counterpart of Aether.

(cryptocurrencies) A unit of the Ethereum digital currency, ETH.

(cryptocurrencies) Alternative letter-case form of Ether

(transitive, slang) To viciously humiliate or insult.

(by extension) The medium breathed by human beings; the air. / (by extension) The sky, the heavens; the void, nothingness.

plural of ethereality

The quality of being ethereal.

Pertaining to the (real or hypothetical) upper, purer air, or to the higher regions beyond the earth or beyond the atmosphere.

In an ethereal manner

Of or pertaining to the ether (all-pervading medium); composed of ether; inhabiting the ether.