You searched for: “addendum
addenda, addendum, agenda
addenda (uh DEN duh) (noun, plural)
Things to be added, as in a supplement or an appendix: "The author included three addenda of new materials in his book."
addendum (uh DEN dum) (noun), singular
Something that has been added in a written document: "The report has an addendum clarifying certain procedural actions."
agenda (uh JEN duh) (noun)
A list of things to be done at a meeting; schedule, program: "What is on your agenda today?"

Agenda was originally the plural of Latin agendum (thing to be done) and is still considered by some to be a plural form.

In modern English; however, agenda is usually considered as the singular form with agendas the plural: "What is on the agenda for the meeting?"

"The secretary kept track of the two executives’ agendas."

After his secretary printed the new agenda, Gordan realized he also needed the revised addenda which should be printed in an addendum.

addendum (s)
Something added or to be added, especially a supplement to a book or magazine; such as, an appendix, a glossary (an alphabetical list of technical terms in some specialized field of knowledge; usually published as an appendix to a text about that field), etc.
This entry is located in the following unit: ad- (page 6)
addendum (uh DEN dum) (singular)
Something that has been added in a written document; added section, supplement, attachment: "The report has an addendum clarifying certain points."
This entry is located in the following units: Latin Proverbs, Mottoes, Phrases, and Words: Group A (page 11) -um (page 1)
(fauna [animals] and flora [plants] at the bottom of the sea)
Word Entries at Get Words containing the term: “addendum
Benthos Addendum
Fauna (animals) and flora (plants) at the bottom of the sea unit.