1. A note printed at the bottom of a page that provides additional information, explanation, or citation for text on that page.
Usage: Usually plural when referring to multiple notes in a document.; Common in academic writing, research papers, and formal publications.
2. A brief comment or remark added to clarify or supplement main text.
Usage: Can appear at the bottom of a page or end of a document.

Examples

• The history textbook included footnotes explaining the sources of key facts.
• She added footnotes to her essay to cite the research studies she had consulted.
• The author used footnotes to provide additional context without interrupting the main narrative.
• Footnotes at the bottom of the page helped readers understand unfamiliar terms.
• Academic papers typically require footnotes or endnotes for proper citation.
• The novel contained humorous footnotes that added depth to the story.