noun ad·den·dum \ə-ˈden-dəm\

: something that is added; especially : a section of a book that is added to the main or original text

plural ad·den·da \-ˈden-də\ also ad·den·dums

Full Definition of ADDENDUM

:  a thing added :  addition
:  a supplement to a book —often used in plural but singular in construction

Examples of ADDENDUM

  1. The letters are included as an addendum to the biography.
  2. <there's an addendum from the author to explain certain stylistic choices that she made>
  3. Francine du Plessix Gray, in an essay first written in 1991 and updated with an addendum here, writes eloquently of a lifelong obsession with weight loss, stemming from the harsh judgments of a mother enraptured by fashion. —Ginia Bellafante, New York Times Book Review, 21 Sept. 2008

Origin of ADDENDUM

Latin, neuter of addendus, gerundive of addere
First Known Use: 1684

Rhymes with ADDENDUM

ADDENDA Defined for Kids


noun ad·den·dum \ə-ˈden-dəm\
plural ad·den·da \ə-ˈden-də\

Definition of ADDENDUM for Kids

:  something added (as to a book)


Next Word in the Dictionary: addendum circlePrevious Word in the Dictionary: addendAll Words Near: addendum
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears