a plural of addendum.
(used with a singular verb) a list of things to be added: The addenda in the back of the book runs to thirty pages.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use addenda in a sentence
These Fourteen Points and their significant later addenda had an immense reception throughout the world.The Outline of History: Being a Plain History of Life and Mankind | Herbert George Wells
These addenda in the colonel's own handwriting tickled Norton's fancy.Sons and Fathers | Harry Stillwell Edwards
You will be kept informed through our Newsletters (you are on the mailing list), addenda and revisions to the Manual.
One of one hundred copies printed for Mr. Avery, with addenda and frontispiece not in the first edition.
Collation: The same as the preceding copy, excepting that it lacks the final leaf of addenda.