/ ˌæpəˈzɪʃn; NAmE / noun
[ U ] ( grammar ) the use of a noun phrase immediately after another noun phrase which refers to the same person or thing :
In the phrase 'Paris, the capital of France', 'the capital of France' is in apposition to 'Paris'.
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WORD ORIGIN
late Middle English : from late Latin appositio(n-) , from apponere to apply, from ad- towards + ponere put.