Meaning & use
circumference
The distance around a circle.
See it in a sentence
We wrapped a string around the lid to estimate its circumference.
A circle with diameter 10 centimeters has a circumference of 10π centimeters.
A note on using this word
Circumference equals π times the diameter, or 2π times the radius. It is measured in length units, not square units.
Words with a similar meaning
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