Etymology: Middle English, from Old English tūn enclosure, village, town; akin to Old High German zūn enclosure, Old Irish dún fortress
Date: before 12th century
1dialect English: a cluster or aggregation of houses recognized as a distinct place with a place-name :hamlet 2 a: a compactly settled area as distinguished from surrounding rural territory b: a compactly settled area usually larger than a village but smaller than a city c: a large densely populated urban area :cityd: an English village having a periodic fair or market 3: a particular town or city under consideration <the circus came to town> 4: the city or urban life as contrasted with the country 5 a: the inhabitants of a city or town <practically the whole town turned out for the parade>b: the townspeople of a college or university town as distinct from the academic community <relations between town and gown> 6: a New England territorial and political unit usually containing under a single town government both rural areas and urban areas not having their own charter of incorporation; also: a New England community governed by a town meeting 7: a group of prairie dog burrows
— townadjective
— on the town: in usually carefree pursuit of entertainment or amusement (as city nightlife) especially as a relief from routine