speaking vs oral presentation

speaking and oral presentation both are nouns.

Word	Noun	Adjective	Verb	Adverb
speaking	Yes	Yes	No	No
oral presentation	Yes	No	No	No

As nouns, speaking and oral presentation are synonyms defined as:

speaking and oral presentation: delivering an address to a public audience

Other synonyms of speaking include public speaking, speechmaking.

speaking (noun)	oral presentation (noun)
delivering an address to a public audience	delivering an address to a public audience
the utterance of intelligible speech

speaking (adjective)	oral presentation (adjective)
capable of or involving speech or speaking
capable of speech