circumference

Plural: circumferences

Noun

• the size of something as given by the distance around it
• the boundary line encompassing an area or object
  • "he had walked the full circumference of his land"
  • "a danger to all races over the whole circumference of the globe"
• the length of the closed curve of a circle
• The line that bounds a circle or other two-dimensional figure.
• The length of such a line.
• The surface of a round or spherical object.
• The length of the longest cycle of a graph.

Verb

• To include in a circular space; to bound.

Synonyms

circuit, girth, lap, perimeter, umstroke

Related Words

diameter, perimeter, radius