sophism vs fallacy

sophism and fallacy both are nouns.

Word	Noun	Adjective	Verb	Adverb
sophism	Yes	No	No	No
fallacy	Yes	No	No	No

As nouns, fallacy is a hypernym of sophism; that is, fallacy is a word with a broader meaning than sophism:

sophism: a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone
fallacy: a misconception resulting from incorrect reasoning

Other hypernyms of sophism include false belief.

sophism (noun)	fallacy (noun)
a deliberately invalid argument displaying ingenuity in reasoning in the hope of deceiving someone	a misconception resulting from incorrect reasoning