Scotch malt whiskey vs whisky

Scotch malt whiskey and whisky both are nouns.

Word	Noun	Adjective	Verb	Adverb
Scotch malt whiskey	Yes	No	No	No
whisky	Yes	No	No	No

As nouns, whisky is a hypernym of Scotch malt whiskey; that is, whisky is a word with a broader meaning than Scotch malt whiskey:

Scotch malt whiskey: whiskey distilled in Scotland; especially whiskey made from malted barley in a pot still
whisky: a liquor made from fermented mash of grain

Other hypernyms of Scotch malt whiskey include whiskey.

Scotch malt whiskey (noun)	whisky (noun)
whiskey distilled in Scotland; especially whiskey made from malted barley in a pot still	a liquor made from fermented mash of grain