English · Slang Attested

cos

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

Meaning · English

Informal spelling of 'cause (“because”).

Taking the shortcut through the alleyway by the Jobcentre Plus, just cos I can, we arrive at my flat within minutes.

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 “cos” mean?

Informal spelling of 'cause (“because”).

Is “cos” formal or informal?

cos is generally informal.

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