skysign
nounUK /ˈskaɪ.saɪn/
US /ˈskaɪ.saɪn/
A skysign is a big sign in the sky that tells you something.
The pilot looked up and saw a skysign made of clouds.
RELATED WORDS
OTHER MEANINGS
2. A sign or omen seen in the sky, such as a strange cloud or light.
The villagers thought the red sunset was a skysign of good luck.
3. A large illuminated sign mounted high on a building or tower.
The hotel's skysign glowed over the city all night.
4. A signal made by an aircraft or drone for people on the ground.
The rescue team watched for a skysign from the search plane.