noun🔗ShareSomething to be added; especially text added as an appendix or supplement to a document."The teacher added an addendum to the syllabus outlining new assignment deadlines. "writingcommunicationlanguagebusinesslawChat with AIVocabulary GamePractice Reading
noun🔗ShareA postscript."I forgot to mention the date for the party in the invitation, so I sent an addendum with that information. "writinglanguageChat with AIVocabulary GamePractice Reading
noun🔗ShareThe height by which the tooth of a gear projects beyond (outside for external, or inside for internal) the standard pitch circle or pitch line."The gear tooth's addendum, the part extending beyond the pitch circle, ensures smooth contact with the next gear. "technicalmachinepartChat with AIVocabulary GamePractice Reading