circle

circle — noun

1. a round form created by a curved line whose points all stay the same distance fr

1.nounA2
Definition

a round form created by a curved line whose points all stay the same distance from a central point; the flat region enclosed by that line

Example

The children sat on the carpet in a circle to listen to the story.

in a circle — prepositional phrase for arrangement

Yara drew a large red circle on her piece of paper.

draw + circle: common verb–noun collocation

Common collocations
  • draw a circle
  • form a circle
  • in a circle
  • a circle of light
  • a circle of stones
Synonyms
  • ring

    a circular band, usually hollow in the middle and often made of metal or a hard material

  • round

    less formal; used for any circular object or shape, especially in descriptions of food or objects

  • disc

    a flat circular object, often with some thickness, like a coin or a computer disc

Antonyms
  • square

    a shape with four straight sides of equal length and four right angles

Usage Note

Countable noun. Often used with 'in' to describe arrangement: 'in a circle'. Also followed by 'of' to specify what is shaped that way: 'a circle of light'.

Common Mistakes

The wheel has the shape of circle.
The wheel has the shape of a circle.
As a countable noun, 'circle' needs an article ('a' or 'the') in most singular contexts.

2. any set of individuals connected through similar interests, shared work, or soci

2.nounB2
Definition

any set of individuals connected through similar interests, shared work, or social bonds with one another

Example

Priya has a wide circle of friends from different countries.

circle of friends — most common collocation

The novel was widely discussed in academic circles across Europe.

academic circles / political circles / business circles

Common collocations
  • circle of friends
  • social circle
  • academic circles
  • political circles
  • business circles
  • inner circle
  • move in … circles
Synonyms
  • group

    broader; any number of people or things together, not necessarily with a shared identity

  • set

    implies a social group that shares tastes or background, often used in 'the smart set' or 'a set of friends'

  • network

    focuses on connections between people rather than the group itself; often professional

Grammar Patterns

circle of + plural noun

Usage Note

Almost always followed by 'of + noun' to specify the type of people (circle of friends, circle of colleagues). The expression 'move in … circles' describes someone's typical social or professional environment.

Common Mistakes

He has a large circle.
He has a large circle of friends.
When 'circle' means a group of people, it almost always needs 'of' to say who the group consists of.

3. a curved seating area on an upper level of a theatre, cinema, or similar perform

3.nounB1
Definition

a curved seating area on an upper level of a theatre, cinema, or similar performance venue

Example

Theo bought cheap tickets for the circle at the National Theatre.

From the upper circle, Nadia could see the entire stage perfectly.

upper circle / dress circle — specific balcony levels

Common collocations
  • upper circle
  • dress circle
  • circle seats
  • in the circle
Synonyms
  • balcony

    more general term used internationally for upper seating in theatres

  • mezzanine

    common in US English for the first raised level of seating

Antonyms
  • stalls

    the lowest level of seating on the ground floor of a theatre

Usage Note

Chiefly British English. In US theatres the same level is usually called the 'mezzanine' or 'balcony'. Common specific varieties: 'dress circle' (the first balcony, slightly more expensive seats) and 'upper circle' (higher, cheaper seats).

Phrasal verbs

circle back (to)

phrasal verb

to return to a topic or issue later, especially after discussing other related matters first

Let me circle back to that question after we have looked at the budget figures.

The manager promised to circle back with the team once she had more information.

Idioms

to return to the same situation or position that you started in, after going through a series of changes

After ten years abroad, Tomás returned to his hometown and felt his life had come full circle.

Fashion has gone full circle — the hairstyles from the 1990s are popular again now.

to waste time and energy doing many things without achieving any useful result

The team spent the whole morning running around in circles without solving the problem.

Stop running around in circles and focus on one thing at a time.

to join together with other people in order to protect yourselves from criticism or attack from outside the group

When the journalist asked difficult questions, the politicians circled the wagons and refused to comment.

The family circled the wagons after the unfair criticism appeared in the local newspaper.

To end up in the same situation as at the beginning, after many changes.

After years of travel, Maya's life came full circle when she returned home.

The company's focus on quality has turned full circle since its early days.

To keep discussing or doing the same things without reaching a solution or making progress.

The committee went round in circles debating the budget for hours.

Why are we going round in circles? Let's decide now.

To be very busy but without achieving anything useful or making real progress.

Sara ran round in circles all day but finished nothing important.

Stop running round in circles and focus on one task at a time.

To try to do something that seems impossible, like combining two opposite things.

The manager tried to square the circle of cutting costs and raising salaries.

Can we square the circle of economic growth and environmental protection?

circle — verb

Word family

Synonym discussion

Sense: noun/1

These four words all relate to circularity but differ in shape, dimension, and use. A circle is a two-dimensional closed curve with all points equidistant from a centre — the core geometric shape. A ring is a circular band, often three-dimensional and hollow in the middle, like a wedding ring or a key ring. A round is less precise: it can describe any circular object or portion of something, such as a round of cheese, or a single stage in a competition (a boxing round). A cycle refers to a repeating sequence of events or processes (the water cycle, a business cycle) rather than a physical shape. In daily use: 'draw a circle' (shape), 'wear a ring' (jewellery), 'cut a round of bread' (slice), 'the cycle of the seasons' (recurring pattern).

Common collocations

Phrases

Etymology

LatinOld FrenchMiddle EnglishEnglish

The word 'circle' comes from Latin 'circulus', which means 'a small ring' and is a diminutive form of 'circus', meaning 'ring' or 'round enclosure'. The Latin word entered Old French as 'cercle', and then came into Middle English around the 12th century. The mathematical sense of a round plane figure has been in use since the 14th century, while the social-group meaning appeared in the early 18th century. The verb form developed from the noun in the 16th century.