Noun
the time of life between 60 and 70
Source: WordNetOn Friday June 29, a man in his mid-sixties was making the climb up Mt.Sneffels when he started having difficulty breathing. Source: Internet
Two editions in English and Latin were produced in the mid-sixties, which conformed to the rubrics of 1960, published by Liturgical Press and Benziger in America. Source: Internet
Then, the Kennedy Round in the mid-sixties brought about a GATT anti-dumping Agreement and a section on development. Source: Internet
Books seeAlso Doctor Who books have been published from the mid-sixties through to the present day. Source: Internet
Ryan, at this time, is in his mid-sixties and world-famous; and is looking forward to retirement back to the shores of Chesapeake Bay once and for all. Source: Internet
Everything in its proper place until the Free Speech Movements of the mid-sixties. Source: Internet