ap·​pend | \ə-ˈpend \
appended; appending; appends

Definition of append 

transitive verb

1 : attach, affix appended a diagram to the instructions

2 : to add as a supplement or appendix (as in a book) notes appended to each chapter

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Synonyms & Antonyms for append


add, adjoin, annex, subjoin, tack (on)


abate, bate, deduct, knock off, remove, subtract, take off

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Add Append Onto Your Vocabulary

Append is a somewhat formal word. Lawyers, for example, often speak of appending items to other documents, and lawmakers frequently append small bills to big ones, hoping that everyone will be paying attention only to the main part of the big bill and won't notice. When we append a small separate section to the end of a report or a book, we call it an appendix. But in the early years of e-mail, the words we decided on were attach and attachment, probably because appendixes are thought of as unimportant, whereas the attachment is often the whole reason for sending an e-mail.

Examples of append in a Sentence

append the prefix “un-” to each of these words

Recent Examples on the Web

That’s likely the idea behind appending the Charlottesville footage to the end of the film (something, again, that wasn’t in the original plan for the film), which includes Duke’s vocal praise of Trump. Alissa Wilkinson, Vox, "Spike Lee’s BlacKkKlansman draws a ham-fisted line from white supremacy’s past to its present," 15 May 2018 Instead of quote tweeting Trump’s warm wishes though, Abe appended his message to a Trump tweet trashing Flake. Adam K. Raymond, Daily Intelligencer, "Japan’s Shinzō Abe Quote Tweets Trump Bashing Jeff Flake," 7 June 2018 Blount appended it with the #secondcivilwarletters. Amy B Wang, Washington Post, "‘No place to recharge my Kindle’: Letters imagine the front lines of America’s ‘second civil war’," 3 July 2018 It’s unclear if such a note is appended to the parent’s file. Issie Lapowsky, WIRED, "How a Child Moves Through a Broken Immigration System," 20 June 2018 Twitter has increasingly utilized special emojis for a variety of trends, and several other K-pop acts have had their own distinct graphics appended to hashtags. Tamar Herman, Billboard, "EXO Celebrate First Anniversary on Twitter With New Emoji," 9 July 2018 However, many who have expressed outrage online about family separations have been appending their tweets with the hashtags #WhereAreTheChildren or #MissingChildren, intentionally or unintentionally linking the two issues. Amy B Wang, The Seattle Times, "The U.S. lost track of 1,475 immigrant children last year — here’s why people are outraged now," 28 May 2018 Mr Beall’s list has been taken up by another researcher who has since appended 690 new journals to it. The Economist, "Some science journals that claim to peer review papers do not do so," 21 June 2018 Another measure users of Gmail and some other services can take is to append a unique string containing a plus sign and a domain to an existing email address. Dan Goodin, Ars Technica, "How to protect yourself from megabreaches like the one that hit Ticketfly," 4 June 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'append.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of append

circa 1509, in the meaning defined at sense 1

History and Etymology for append

Latin appendere, to hang, weigh out, from ad- + pendere to weigh — more at pendant

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Statistics for append

Last Updated

22 Oct 2018

Look-up Popularity

Time Traveler for append

The first known use of append was circa 1509

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More Definitions for append


ap·​pend | \ə-ˈpend \
appended; appending

Kids Definition of append

: to add as something extra append a postscript

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Comments on append

What made you want to look up append? Please tell us where you read or heard it (including the quote, if possible).


to clear from alleged fault or guilt

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