# Circular vs. Circumference: What's the Difference?

## Circular and Circumference Definitions

#### Circular

Of or relating to a circle.

#### Circumference

The boundary line of a circle.

#### Circular

Shaped like or nearly like a circle; round.

#### Circumference

The boundary line of an area or object.

#### Circular

Moving in or forming a circle.

#### Circumference

Abbr. c or circ. The length of such a line.

#### Circular

Took a circular route to the office.

#### Circumference

The margin or area surrounding something.

#### Circular

Using a premise to prove a conclusion that in turn is used to prove the premise
A circular argument.

#### Circumference

(geometry) The line that bounds a circle or other two-dimensional figure Category:en:Curves

#### Circular

Defining one word in terms of another that is itself defined in terms of the first word.

#### Circumference

(geometry) The length of such a line

#### Circular

Addressed or distributed to a large number of persons.

#### Circumference

(obsolete) The surface of a round or spherical object

#### Circumference

(graph theory) The length of the longest cycle of a graph

#### Circular

Of or relating to a circle.

#### Circumference

To include in a circular space; to bound.

#### Circular

In the shape of, or moving in a circle.

#### Circumference

The line that goes round or encompasses a circular figure; a periphery.

#### Circumference

A circle; anything circular.
His ponderous shield . . .Behind him cast. The broad circumferenceHung on his shoulders like the moon.

#### Circular

Referring back to itself, so as to prevent computation or comprehension; infinitely recursive.
Circular reasoning
Your dictionary defines "brave" as "courageous", and "courageous" as "brave". That's a circular definition.
A circular formula in a spreadsheet
I changed the definition of "sex" from "to have sex" to "to have sexual intercourse"; a dictionary definition must never be circular; using the word being defined to define itself.

#### Circumference

The external surface of a sphere, or of any orbicular body.

#### Circular

Distributed to a large number of persons.

#### Circumference

To include in a circular space; to bound.

#### Circular

(obsolete) Perfect; complete.

#### Circumference

The size of something as given by the distance around it

#### Circular

(archaic) Adhering to a fixed circle of legends; cyclic; hence, mean; inferior.

#### Circumference

The length of the closed curve of a circle

#### Circular

Syn of flyer: a printed advertisement, directive, or notice intended for mass circulation.

#### Circular

(dated) A sleeveless cloak cut from a circular pattern.

#### Circular

A shuttle bus with a circular route.

#### Circular

To distribute circulars to or at.

#### Circular

To extend in a circular direction.

#### Circular

In the form of, or bounded by, a circle; round.

#### Circular

Repeating itself; ending in itself; reverting to the point of beginning; hence, illogical; inconclusive; as, circular reasoning.

#### Circular

Adhering to a fixed circle of legends; cyclic; hence, mean; inferior. See Cyclic poets, under Cyclic.
Had Virgil been a circular poet, and closely adhered to history, how could the Romans have had Dido?

#### Circular

Addressed to a circle, or to a number of persons having a common interest; circulated, or intended for circulation; as, a circular letter.
A proclamation of Henry III., . . . doubtless circular throughout England.

#### Circular

Perfect; complete.
A man so absolute and circularIn all those wished-for rarities that may takeA virgin captive.

#### Circular

A circular letter, or paper, usually printed, copies of which are addressed or given to various persons; as, a business circular.

#### Circular

A sleeveless cloak, cut in circular form.

#### Circular

An advertisement (usually printed on a page or in a leaflet) intended for wide distribution;
He mailed the circular to all subscribers

#### Circular

Having a circular shape

#### Circular

Shaped like a ring

#### Circular

Marked by or moving in a circle