synthesis vs abstract thought

synthesis and abstract thought both are nouns.

Word	Noun	Adjective	Verb	Adverb
synthesis	Yes	No	No	No
abstract thought	Yes	No	No	No

As nouns, abstract thought is a hypernym of synthesis; that is, abstract thought is a word with a broader meaning than synthesis:

Other hypernyms of synthesis include logical thinking, reasoning.

As nouns, abstract thought is a hypernym of synthesis; that is, abstract thought is a word with a broader meaning than synthesis:

synthesis: reasoning from the general to the particular (or from cause to effect)
abstract thought: thinking that is coherent and logical

Other hypernyms of synthesis include logical thinking, reasoning.

synthesis (noun)	abstract thought (noun)
the combination of ideas into a complex whole	thinking that is coherent and logical
reasoning from the general to the particular (or from cause to effect)
the process of producing a chemical compound (usually by the union of simpler chemical compounds)