The original meaning: Aether (mythology), the personification of the "upper sky", space and heaven, in Greek mythology.

Luminiferous aether, in early physics considered to be the medium through which light propagates

Aether, the setting for Retro Studios' Metroid Prime 2: Echoes game for the Nintendo GameCube

Any number of aether theories in alchemy, natural philosophy, and modern physics which suppose a "fifth element".

Ether, an item to restore MP in the series Final Fantasy as well as in many other RPGs. In Pokémon, ether is an item that restores PP to pokémon moves.

Diethyl ether, which has the common name "ether".

Etheric body, in some esoteric teachings, a sort of aura that constitutes the "blueprint" of the physical body

Etheric plane, in some esoteric teachings, one of planes of existence

Ether (song), a 2001 song by American rapper Nas

The aether of classical elements is a concept, historically, used in science (as a medium) and in philosophy (as a substance).

Ether, a reference to the Book of Ether

Ether (band) Rock music group.

"Ether," a song preformed by the group Nothingface on their Skeletons (album)

Ether (prophet)

Aether in the Nintendo GameCube game Fire Emblem: Path of Radiance, a skill learned by Ike, the main character, which allows him to inflict massive damage upon an opponent as well as healing himself. Ike learns this skill through an item called "The Occult".

"Ether," a song by Gang of Four from their 1979 album Entertainment!

Aether (demo) Scene.org Awards winning real-time graphics presentation from a demoscene group Mfx.