Source : Webster's Revised Unabridged Dictionary (1913)

Ottawas \Ot"ta*was\, n. pl.; sing. {Ottawa}. (Ethnol.)
   A tribe of Indians who, when first known, lived on the Ottawa
   River. Most of them subsequently migrated to the southwestern
   shore of Lake Superior.

Source : WordNet®

Ottawa
     n 1: a member of the Algonquian people of southern Ontario
     2: the capital of Canada (located in southeastern Ontario
        across the Ottawa river from Quebec) [syn: {Canadian
        capital}, {capital of Canada}]