free thought vs deism

free thought and deism both are nouns.

Word	Noun	Adjective	Verb	Adverb
free thought	Yes	No	No	No
deism	Yes	No	No	No

As nouns, free thought and deism are synonyms defined as:

free thought and deism: the form of theological rationalism that believes in God on the basis of reason without reference to revelation

free thought (noun)	deism (noun)
the form of theological rationalism that believes in God on the basis of reason without reference to revelation	the form of theological rationalism that believes in God on the basis of reason without reference to revelation