A US state name with four instances of its only vowel (9)

I believe the answer is:

tennessee

(Other definitions for tennessee that I've seen before include "Famous American playwright . . . . . . . . . Williams" , "American state, capital Nashville" , "Volunteer State" , "... Williams, and southeastern US state" , "Memphis's state" .)

I've seen this clue in The Times and The Sunday Times.

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