oil of turpentine vs spirit of turpentine

oil of turpentine and spirit of turpentine both are nouns.

Word	Noun	Adjective	Verb	Adverb
oil of turpentine	Yes	No	No	No
spirit of turpentine	Yes	No	No	No

As nouns, oil of turpentine and spirit of turpentine are synonyms defined as:

oil of turpentine and spirit of turpentine: volatile liquid distilled from turpentine oleoresin; used as paint thinner and solvent and medicinally

Other synonyms of oil of turpentine include turpentine, turps.

oil of turpentine (noun)	spirit of turpentine (noun)
volatile liquid distilled from turpentine oleoresin; used as paint thinner and solvent and medicinally	volatile liquid distilled from turpentine oleoresin; used as paint thinner and solvent and medicinally