in circulation  
  流通(りゅうつう)(ちゅう)

(1) Noun :

In general distribution. When something is "in circulation" it means that it has been sold or distributed widely.

〔金や情報などの〕流れ、流通、流布


Examples

  • The rare coin was in circulation in the late 1950's, and is worth a lot of money today.  

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