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footnote vs. endnote

footnote
[foot-noht] / ˈfʊtˌnoʊt /

noun

  1. an explanatory or documenting note or comment at the bottom of a page, referring to a specific part of the text on the page.

  2. a minor or tangential comment or event added or subordinated to a main statement or more important event.

verb (used with object)

footnotes, present (3rd person singular) footnoted, past participle, past footnoting present participle

  1. to add a footnote or footnotes to (a text, statement, etc.); annotate.

    to footnote a dissertation.
endnote
[end-noht] / ˈɛndˌnoʊt /

noun

  1. a note, as of explanation, emendation, or the like, added at the end of an article, chapter, etc.