1. ottawa(n = noun.person) - a member of the Algonquian people of southern Ontario;
is a kind of algonquian, algonquin
2. ottawa(n = noun.object) ottawa river, outaouais - a river in southeastern Canada that flows along the boundary between Quebec and Ontario to the Saint Lawrence River near Montreal;
is a kind of river
is a part of canada
3. ottawa(n = noun.location) canadian capital, capital of canada - the capital of Canada (located in southeastern Ontario across the Ottawa river from Quebec);
is a kind of national capital
is a part of ontario