thirst for knowledge vs desire to know

thirst for knowledge and desire to know both are nouns.

Word	Noun	Adjective	Verb	Adverb
thirst for knowledge	Yes	No	No	No
desire to know	Yes	No	No	No

As nouns, thirst for knowledge and desire to know are synonyms defined as:

thirst for knowledge and desire to know: curiosity that motivates investigation and study

Other synonyms of thirst for knowledge include lust for learning.

thirst for knowledge (noun)	desire to know (noun)
curiosity that motivates investigation and study	curiosity that motivates investigation and study