liquor vs strong drink

liquor and strong drink both are nouns.

Word	Noun	Adjective	Verb	Adverb
liquor	Yes	No	No	No
strong drink	Yes	No	No	No

As nouns, liquor and strong drink are synonyms defined as:

liquor and strong drink: an alcoholic beverage that is distilled rather than fermented

Other synonyms of liquor include booze, hard drink, hard liquor, John Barleycorn, spirits.

liquor (noun)	strong drink (noun)
an alcoholic beverage that is distilled rather than fermented	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