Win·ni·peg (w?n??-p?g?) The capital and largest city of Manitoba, Canada, in the southeast part of the province at the confluence of the Red and Assiniboine Rivers south of Lake Winnipeg. Founded as a fur-trading post, it developed rapidly after the coming of the railroad in 1885.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.Winnipeg (?w?n??p??) n1. (Placename) a city in S Canada, capital of Manitoba at the confluence of the Assiniboine and Red Rivers: University of Manitoba (1877) and University of Winnipeg (1871). Pop: 663 617 (2011)2. (Placename) Lake Winnipeg a lake in S Canada, in Manitoba: drains through the Nelson River into Hudson Bay. Area: 23 553 sq km (9094 sq miles)Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014Win?ni?peg (?w?n ??p?g) n. 1. the capital of Manitoba, in S Canada, on the Red River. 616,790. 2. Lake, a lake in S Canada, in Manitoba. 9465 sq. mi. (24,514 sq. km). 3. a river in S Canada, flowing NW from the Lake of the Woods to Lake Winnipeg. ab. 200 mi. (320 km) long. Win?ni?peg`ger, n. Random House Kernerman Webster’s College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.