disputation vs speaking

disputation and speaking both are nouns.

Word	Noun	Adjective	Verb	Adverb
disputation	Yes	No	No	No
speaking	Yes	Yes	No	No

As nouns, speaking is a hypernym of disputation; that is, speaking is a word with a broader meaning than disputation:

disputation: the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)
speaking: delivering an address to a public audience

Other hypernyms of disputation include oral presentation, public speaking, speechmaking.

disputation (noun)	speaking (noun)
the formal presentation of a stated proposition and the opposition to it (usually followed by a vote)	delivering an address to a public audience
a contentious speech act; a dispute where there is strong disagreement	the utterance of intelligible speech

disputation (adjective)	speaking (adjective)
	capable of or involving speech or speaking
	capable of speech