also: エアー · エヤー
Katakana noun for air, especially air in tires, equipment, products, or compounds. For ordinary atmospheric air or the mood of a place, 空気 is usually more natural.
I put air in the tire.
I put air into the tire.
このポンプでエアーの量を調整できます。
You can adjust the amount of air with this pump.
自転車のタイヤのエアが抜けている。
The air has leaked out of the bicycle tire.
air bag
airport
airline
air force
airmail
Common katakana spelling, especially in compounds and product or technical contexts.
Common long-vowel variant of エア; often seen in everyday and commercial writing.
Rare katakana variant; エア and エアー are the practical modern spellings.
A katakana word. No language of origin is specified, so the exact borrowing history is not stated here.