Definitions:

1. An abbreviation derived from the Latin word "ibidem", meaning "in the same place". ABBREVIATION
2. In academic writing, particularly in footnotes, endnotes, and bibliographies, is used to refer to a source that was cited in the immediately preceding footnote or endnote. ABBREVIATION
   • First citation: John Smith, Example Book (New York: Publisher, 2020), 25.
   • Subsequent citation: Ibid., 30.

Synonyms:

• ib.
• ibidem