The Collaborative International Dictionary of English v.0.48:
Hindostani \Hindostani\ n. Same as Hindustani. See Hindoostanee. Syn: Hindustani, Hindoostani. [WordNet 1.5]WordNet (r) 3.0 (2006):
Hindostani n 1: a form of Hindi spoken around Delhi [syn: Hindustani, Hindoostani, Hindostani]