Definition of "shire"
shire
/ʃaɪə/
noun
plural shires
(Britain)
(chiefly historical) An administrative area or district between about the 5th to the 11th century, subdivided into hundreds or wapentakes and jointly governed by an ealdorman and a sheriff; also, a present-day area corresponding to such a historical district; a county; especially (England), a county having a name ending in -shire.
(by extension) The people living in a shire (sense 1.1) considered collectively.