noun

circumference

circumference, perimeter

What is the circumference of the Earth?

What is the circumference of the Earth?

He measured the circumference of the tree trunk.

He measured the circumference of the tree trunk.

((of sth.)) the distance around sth. The circumference of the circle is 10 cm.

Synonyms: perimeter, periphery, boundary; Antonyms: diameter, radius

From Latin `circum` (around) + `ferre` (to carry, to bear). It literally means 'carrying around'.

Imagine 'carrying' (`ferre`) a measuring tape 'around' (`circum`) a circle to measure it.

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