Word.ws English Dictionary

Li-Fi

Li-Fi noun: a bidirectional, high-speed, networked wireless communication technology similar to Wi-Fi but using visible light instead of radio waves.

Noun

Li-Fi (uncountable)

  1. A bidirectional, high-speed, networked wireless communication technology similar to Wi-Fi but using visible light instead of radio waves.
    • Since Li-Fi uses just the light, it can be used safely in aircrafts^([sic]) and hospitals that are prone to interference from radio waves.2012, Jyoti Rani, Prerna Chauhan, Ritika Tripathi, “Li-Fi (Light Fidelity)-The future technology In Wireless communication”, in International Journal of Applied Engineering Research, volume 7, number...
    • The beauty of Li-Fi is that it uses existing infrastructure, avoiding the need for thousands of radio masts, as the current spectrum requires.2014, Infinite Magazine 2013-2014

Origin of Li-Fi

Coined by Harald Haas, the inventor of the technology, after Wi-Fi and as an abbreviation of light fidelity.

Questions about Li-Fi

What does Li-Fi mean?
Li-Fi means a bidirectional, high-speed, networked wireless communication technology similar to Wi-Fi but using visible light instead of radio waves.
What part of speech is Li-Fi?
Li-Fi is a noun.

Words near Li-Fi in the dictionary

  1. li'l' old
  2. li'l' ole
  3. Li's criterion
  4. Li-ch'uan
  5. Li-chiang
  6. Li-Fi
  7. Li-Fraumeni syndrome
  8. Li-ion
  9. Li-Lo
  10. Li-sanism
  11. Li-sanist

Source and license

Adapted from Wiktionary: Li-Fi (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated:

Cite this entry: “Li-Fi.” Word.ws, https://word.ws/li-fi. Based on Wiktionary, CC BY-SA 4.0.