What does "gigasecond" mean?

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

Gigasecond

Q: How do you use "gigasecond" in a sentence?

Holonyms: century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond

noun

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Definitions

Noun

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"

Example

More examples

"Holonyms: century < kiloannum, kiloyear, millennium < terasecond < mega-annum, megayear < petasecond < giga-annum, gigayear < exasecond < zettasecond < yottasecond < ronnasecond < quettasecond"

Etymology

From giga- + second.

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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.