Solar

Definitions

1. Alternative letter-case form of solar (“pertaining to the Sun (the star Sol)”)
2. Ellipsis of solar energy.
   abbreviation, alt-of, ellipsis, uncountable
3. A loft or upper chamber forming the private accommodation of the head of the household in a medieval hall; a garret room.
   historical
4. A fictional currency used in science fiction.
   uncountable

Equivalents

Examples

“He’s a player in robots and solar, cryptocurrency and climate, brain-computer implants to stave off the menace of artificial intelligence and underground tunnels to move⟳ people and freight at super speeds.”

CEFR level