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From Latin appendere (to hang up, suspend on, pay out), via Old French apendre, appendre, via Middle English appenden; from ad (on, upon, against) + pendere (to suspend, hang), equivalent to ad- +‎ pend. Compare with Old English appenden, apenden (to belong). See also pendant.



append (third-person singular simple present appends, present participle appending, simple past and past participle appended)

  1. (transitive) To hang or attach to, as by a string, so that the thing is suspended
    a seal appended to a record
    An inscription was appended to the column.
  2. (transitive) To add, as an accessory to the principal thing; to annex
    notes appended to a book chapter
  3. (computing) To write more data to the end of a pre-existing file, string, or other object.

Derived terms[edit]



append (plural appends)

  1. (computing) An instance of writing more data to the end of an existing file.
    • 1997, Jeffrey H. Kingston, Algorithms and Data Structures, →ISBN:
      After recursively sorting the two subsets, the situation is (11,28) 35 (45,50,62) and an append of the three pieces gives the final result.
    • 2007, Jeff LeSueur, Marketing Automation: Practical Steps to More Effective Direct Marketing, →ISBN:
      Logging can be used to back out bad data, be it an overwrite of existing data or an append of new data.
    • 2016, Sibsankar Haldar, SQLite Database System Design and Implementation:
      When a file is created or expanded due to an append of new data to the file, new blocks are allocated to the file.







  1. third-person singular present indicative of appendre