Meaning & use
addendum
An item of additional material added, usually at the end, to a book, document, or contract.
See it in a sentence
The lawyers attached an addendum to the contract clarifying the new delivery date.
The publisher included a short addendum with corrections found after the book was printed.
A note on using this word
The plural of addendum can be either addenda, the traditional Latin plural, or the more casual addendums.
Words with a similar meaning
appendixsupplement
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
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