Learn how to say Mammoth correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word mammoth:
a large extinct elephant of the Pleistocene epoch, typically hairy with a sloping back and long curved tusks.
Genus Mammuthus, family Elephantidae: several species. See woolly mammoth
a mammoth corporation
early 18th century: from Russian mamo(n)t, probably of Siberian origin