key out
In real, traceable use. Part of the curated seed collection; community review is coming.
Meaning · English
To remove (something) or make (something) transparent in a scene through the use of a chromakey.
Where it’s used:
Used
American English
Examples
Blue screens are much easier to use when filming dark scenes, where there shouldn't be much light. Also, they're easier to key out around objects that melt into the green screen, like blond hair. Still, blue screens are more expensive to use as they need a lot more light to work properly.
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 “key out” mean?
To remove (something) or make (something) transparent in a scene through the use of a chromakey.
Is “key out” formal or informal?
No register label has been reviewed yet — treat it as neutral and check the usage notes above.