preposition
- approximately; around (used with dates or numbers)
Usage: formal; often abbreviated as c. or ca.
adverb
- approximately; around
Usage: formal
Examples
- The ancient temple was built circa 500 BCE.
- She was born circa 1985.
- The manuscript dates to circa the 12th century.
- The population of the town is circa 15,000.
- Construction began circa 1920 and finished ten years later.
- The artifact is from circa 200 AD.