association · noun /əˌsoʊ.siːˈeɪ.ʃən/
association
B2 C an organization of people with the same interests or with a particular purpose
Dictionary example:
the American Medical Association
Learner example:
I am a member of the local Kung-Fu Association. (First Certificate in English; B2; Spanish)
in association with
C1 working together with
Dictionary example:
The event was organized in association with the Student Council.
Learner example:
This service, which will be [provided] in association with Foster Loft, will be available at the end of 2005. (Certificate in Advanced English; C1; Swiss German)
association (CONNECTION)
C2 C or U a connection or relationship between two things or people
Dictionary example:
There is no association between the two groups.
Learner example:
The second example is people who wear clothes such as black le[a]ther suits and black or purple lip-stick, showing their association with a particular genre of music. (Certificate of Proficiency in English; C2; Japanese)