n.
Pronunciation: ' tu ̇ r, 1 is also ' tau ̇ (- ə )r
Function: noun
Etymology: Middle English, from Anglo-French tur, tourn turning, circuit, journey ― more at TURN
Date: 14th century
1 a : one's turn in an orderly schedule : SHIFT b : a period during which an individual or unit is on a specific duty or at one place <a tour of duty>
2 a : a journey for business, pleasure, or education often involving a series of stops and ending at the starting point also : something resembling such a tour <a tour of the history of philosophy> b : a brief turn : ROUND c : a series of professional tournaments (as in golf or tennis)