Word.ws English Dictionary

gigasecond

gigasecond noun: an SI unit of time equal to 10⁹ seconds. Symbol: Gs. (= 31.7098 years).

Noun

gigasecond (plural gigaseconds)

  1. An SI unit of time equal to 10⁹ seconds. Symbol: Gs. (= 31.7098 years)
    • Holonyms: century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond
    • Meronyms: quectosecond < rontosecond < yoctosecond < zeptosecond < attosecond < femtosecond < picosecond < nanosecond < microsecond < millisecond < centisecond < decisecond < second < decasecond < minute < hectosecond < kilosecond < hour < day < week < megasecond < fortnight < month < year

Forms of gigasecond

pluralgigaseconds

Origin of gigasecond

From giga- + second.

Questions about gigasecond

What does gigasecond mean?
Gigasecond means an SI unit of time equal to 10⁹ seconds. Symbol: Gs. (= 31.7098 years).
What part of speech is gigasecond?
Gigasecond is a noun.
What is the plural of gigasecond?
The plural of gigasecond is gigaseconds.

Words near gigasecond in the dictionary

  1. gigarads
  2. gigartinaceous
  3. gigascale
  4. gigaseal
  5. gigaseals
  6. gigasecond
  7. gigaseconds
  8. gigasporaceous
  9. gigasporalean
  10. gigasporoid
  11. gigasporoids

Source and license

Adapted from Wiktionary: gigasecond (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: “gigasecond.” Word.ws, https://word.ws/gigasecond. Based on Wiktionary, CC BY-SA 4.0.