gillion
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
An unspecified large number (of).
Register: slang
Where it’s used:
Used
American English
Examples
At Guy's school there had been an outdoor pool, in use from April to October, a watery grave for a billion insects, or quite possibly a gillion or a squillion. The bright turquoise lining had wrinkled under the children's feet.
Usage example from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30)
Sources & notes
Adapted from English Wiktionary (CC BY-SA 4.0, retrieved 2026-07-30 via kaikki.org).
Common questions
What does “gillion” mean?
An unspecified large number (of).
Is “gillion” formal or informal?
gillion is generally slang.