Word.ws English Dictionary

5.1

5.1 noun: a six-channel surround sound audio system, having five full-bandwidth channels and one low-frequency effects channel.

Noun

5.1 (uncountable)

  1. (attributive) A six-channel surround sound audio system, having five full-bandwidth channels and one low-frequency effects channel.
    • Unless you have the space to set up a mini IMAX in your living room, your best bet is to get a decent 2.1 or 5.1 speaker set.2006, Ben Hardwidge, Building Extreme PCs: The Complete Guide to Computer Modding

Questions about 5.1

What does 5.1 mean?
5.1 means a six-channel surround sound audio system, having five full-bandwidth channels and one low-frequency effects channel.
What part of speech is 5.1?
5.1 is a noun.

Words near 5.1 in the dictionary

  1. 5-piece door
  2. 5-star
  3. 5-to-the-em space
  4. 5-to-the-em spaces
  5. 5.0
  6. 5.1
  7. 5/4
  8. 5/8
  9. 50 burger
  10. 50 burgers
  11. 50 cent army

Source and license

Adapted from Wiktionary: 5.1 (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.

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