tusker: any mammal with prominent tusks (especially an elephant or wild boar)
mammal: any warm-blooded vertebrate having the skin more or less covered with hair; young are born alive except for the small subclass of monotremes and nourished with milk
hindi: the most widely spoken of modern Indic vernaculars; spoken mostly in the north of India; along with English it is the official language of India; usually written in Devanagari script