Definition of Addendum:

  1. An addendum is an attachment to a contract that modifies the terms and conditions. Addendums are used to efficiently update the terms or conditions of many types of contracts. Its function is to modify, clarify, or nullify a portion of the original documents, which could be as simple as extending the dates for which the contract is valid or as complex as redefining the payment schedules and deliverables.

  2. The radial distance from the pitch circle of a cogwheel, worm wheel, etc., to the crests of the teeth or ridges.

  3. An item of additional material, typically omissions, added at the end of a book or other publication.

  4. Document or information attached or added to clarify, modify, or support the information in the original document or written work. In construction industry, for example, an addendum issued by a client during the bidding process becomes part of the contract documents when the contract is awarded.

  5. An addendum may include any written item added to an existing piece of writing. The addition often applies to supplemental documentation to change the initial agreement forming the original contract. In that context, The addition may also serve a purely informational purpose, such as a supplement to a book or documents that demonstrate a provision of the contract. In these cases, the information may also contain drawings or diagrams that clarify the details of an agreement.

Synonyms of Addendum

Appendix, Codicil, Postscript, Afterword, Tailpiece, Rider, Coda, Supplement, Accompaniment, PS, Parthian shot, Accession, Accessory, Accident, Accidental, Accompaniment, Addenda, Additament, Addition, Additive, Additory, Additum, Adjunct, Adjuvant, Afterthought, Annex, Annexation, Appanage, Appendage, Appendant, Appendix, Appurtenance, Appurtenant, Attachment, Augment, Augmentation, Auxiliary, Back matter, Chorus, Coda, Codicil, Collateral, Colophon, Complement, Conclusion, Concomitant, Consequence, Contingency, Contingent, Continuance, Continuation, Corollary, Double take, Dying words, Envoi, Epilogue, Extension, Extra, Extrapolation, Fixture, Follow-through, Follow-up, Happenstance, Incidental, Increase, Increment, Inessential, Last words, Mere chance, Nonessential, Not-self, Offshoot, Other, Parting shot, Pendant, Peroration, Postface, Postfix, Postlude, Postscript, Refrain, Reinforcement, Rider, Second thought, Secondary, Sequel, Sequela, Sequelae, Sequelant, Sequent, Sequitur, Side effect, Side issue, Subscript, Subsidiary, Suffix, Superaddition, Supplement, Swan song, Tag, Tailpiece, Undergirding, Unessential

How to use Addendum in a sentence?

  1. The client wanted his lawyer to attach an addendum to the original contract which would allow him to make changes to his building.
  2. The cover has changed, the map of Egypt is missing, and additions and corrections have been placed as an addendum on page 205 instead of directly in the text.
  3. Many people dont read their contracts and therefore dont realize that many have an addendum which could make things very difficult in the future.
  4. The old man had his lawyer add an addendum to his existing will to be sure that his grandchild would inherit 25% of his fortune, which would leave 75% to his two children.

Meaning of Addendum & Addendum Definition