skycode
nounUK /ˈskaɪkəʊd/
US /ˈskaɪkoʊd/
A secret set of signs in the sky that people use to share messages.
The pilots read the skycode to find their way home.
RELATED WORDS
OTHER MEANINGS
2. A hidden pattern of stars that some people believe carries meaning.
Ancient sailors studied the skycode to guide their ships at night.
3. A private system of symbols used by a group to talk about the weather.
The farmers shared a skycode to warn each other about storms.
4. A made-up language of shapes drawn in the air by planes.
At the air show, the planes spelled out a skycode for the crowd.