noun
Refers to radio as a technology or communication method, often in compounds like 無線通信 (radio communication) or 無線LAN (wireless LAN).
無線で連絡を取り合った。
We kept in touch by radio.
noun which may take the genitive case particle 'no', noun
wireless; not using wires
Describes something that operates without physical wires; antonym of 有線 (wired). Often used as a no-adjective.
Antonyms: 有線
このマウスは無線です。
This mouse is wireless.