quotation vs annotation

quotation and annotation both are nouns.

Word	Noun	Adjective	Verb	Adverb
quotation	Yes	No	No	No
annotation	Yes	No	No	No

As nouns, annotation is a hypernym of quotation; that is, annotation is a word with a broader meaning than quotation:

quotation: a short note recognizing a source of information or of a quoted passage
annotation: a comment or instruction (usually added)

Other hypernyms of quotation include notation, note.

quotation (noun)	annotation (noun)
the practice of quoting from books or plays etc.	the act of adding notes
a passage or expression that is quoted or cited	a comment or instruction (usually added)
a short note recognizing a source of information or of a quoted passage
a statement of the current market price of a security or commodity