noun

addendum

uh-DEHN-duhm

noun

Something added on afterward, especially extra text attached to a document.

"The contract included an addendum covering the new payment terms."

"Please read the addendum at the back of the report before signing."

How to Use Addendum

Learner’s notes

In plain EnglishAn extra piece added to the end of a document to add or clarify information.

Common mistake

The plural is "addenda," not "addendums," in formal writing.

Common pairings

an addendum to the contract attach an addendum

addenda plural, addendums plural

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Can you complete this real example?

The contract included an _____ covering the new payment terms.

From Latin addendum, "a thing to be added," from addere, "to add."

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