arak vs liquor

arak and liquor both are nouns.

Word	Noun	Adjective	Verb	Adverb
arak	Yes	No	No	No
liquor	Yes	No	No	No

As nouns, liquor is a hypernym of arak; that is, liquor is a word with a broader meaning than arak:

arak: any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses
liquor: an alcoholic beverage that is distilled rather than fermented

Other hypernyms of arak include booze, hard drink, hard liquor, John Barleycorn, spirits, strong drink.

arak (noun)	liquor (noun)
any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses	an alcoholic beverage that is distilled rather than fermented
	the liquid in which vegetables or meat have been cooked
	a liquid substance that is a solution (or emulsion or suspension) used or obtained in an industrial process