circulation

The movement of blood around your body.

• Exercise improves circulation.
• Her feet feel cold because she has poor circulation.
• The doctor checked the circulation in his legs.

Similar words: blood flow

Common phrases: blood circulation, poor circulation, improve circulation

The use and movement of coins and paper money as people pay for things.

• The old coins are still in circulation.
• New banknotes entered circulation last month.
• The bank removed fake notes from circulation.

How to use it: in circulation (These coins are still in circulation.); take something out of circulation (The bank took the damaged notes out of circulation.)

Common phrases: in circulation, out of circulation, enter circulation

The movement or spread of something between places or people.

• The story has wide circulation.
• They encouraged the circulation of ideas between departments.
• Several versions of the document are in circulation.

How to use it: the circulation of something (They restricted the circulation of the private report.)

Similar words: distribution, spread

Common phrases: circulation of something, wide circulation, in circulation

Movement around a route that returns to its starting point.

• The pump keeps the water in circulation.
• Air circulation around the room helps spread the warmth.
• A blockage stopped circulation through the loop of pipes.

How to use it: circulation around something (The pump maintains circulation around the closed pipe system.)

Common phrases: water circulation, air circulation, circulation around something