liquor vs arrack

liquor and arrack both are nouns.

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

As nouns, arrack is a hyponym of liquor; that is, arrack is a word with a more specific, narrower meaning than liquor:

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

liquor (noun)	arrack (noun)
an alcoholic beverage that is distilled rather than fermented	any of various strong liquors distilled from the fermented sap of toddy palms or from fermented molasses
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