English · Slang Attested

katrillion

In real, traceable use. Part of the curated seed collection; community review is coming.

Meaning · English

An unspecified large number (of).

Where it’s used: Used American English

Examples

Our own American culture also makes a lot of noise about hair. The katrillion-dollar industry thrives on selling hair products that were produced for five cents and sold for thirty dollars, part of which goes to the zillion-dollar advertising campaigns.

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 “katrillion” mean?

An unspecified large number (of).

Is “katrillion” formal or informal?

katrillion is generally slang.

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