无线

• Pinyin: wú xiàn
• Hanzi breakdown: 无 = without; 线 = 纟+ 戋 (thread radical + small — a thin thread, wire, line)

Meaning

Wireless; without physical cables or wires. Describes technology that transmits signals through electromagnetic waves rather than physical connections.

Used as a modifier before many nouns: 无线网络 (wireless network), 无线充电 (wireless charging), 无线耳机 (wireless earphones), 无线传输 (wireless transmission). Central to modern telecommunications and consumer technology.

Examples

1. 这款路由器支持最新的无线传输协议，覆盖范围广且连接稳定。 This router supports the latest wireless transmission protocols, with wide coverage and a stable connection.
2. 无线充电技术的普及使用户彻底摆脱了繁琐的充电线束缚。 The widespread adoption of wireless charging has freed users completely from the hassle of charging cables.
3. 该咖啡馆提供免费的无线网络服务，吸引了大批远程办公的顾客。 The café offers free Wi‑Fi, attracting a large number of customers who work remotely.

Usage Guide

Context: technology, telecommunications, consumer electronics, daily life

Tone: neutral

Do Say

• 随着5G商用落地，无线网络速率和覆盖大幅提升，推动了工业自动化和远程医疗创新。(With the commercial rollout of 5G, wireless network speed and coverage have risen sharply, driving innovation in industrial automation and telemedicine.)
• 工程师在部署这套智能楼宇管理系统时优先采用了无线传感器方案，既避免了大规模布线施工的麻烦，又确保了各节点数据的实时采集与传输。(When deploying this smart building management system, the engineers prioritised a wireless sensor solution, both avoiding the trouble of large-scale wiring construction and ensuring real-time data collection and transmission from each node.)

Don't Say

• 无线 on its own as a standalone noun — it functions as a modifier, so always pair it with the device or technology it describes; for the concept of radio as a technology, use 无线电

Origin & History

无 (without) + 线 (wire, line) — without wires

Cultural Context

Generation: All ages

Social background: Universal