Word
addendum
Phoneticsad·den·dum, stress on the second syllable
US/əˈdɛndəm/
UK/ɐdˈɛndəm/
Countable noun
Definition
n. a short document that adds extra information to a longer one. You use it when you need to include something new without changing the original text.
n. a supplementary document or section that provides additional information to a primary text. Often used in legal, academic, or technical contexts to clarify or expand upon existing content.
Examples
“The addendum explains the new safety rules.”
“The contract includes an addendum that outlines the specific terms of the insurance coverage.”
“The final report was accompanied by a detailed addendum addressing the concerns raised by the technical committee regarding the initial data collection methods.”
Examples
simple
“The addendum explains the new safety rules.”
contextual
“The contract includes an addendum that outlines the specific terms of the insurance coverage.”
complex
“The final report was accompanied by a detailed addendum addressing the concerns raised by the technical committee regarding the initial data collection methods.”
Etymology
From the gerundive of Latin addere (“to add”).
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.
Domain
- Exam level
- CambridgeCambridgeCambridge English QualificationsThe exam suite from Cambridge University Press & Assessment, from A1 Movers up to C2 Proficiency. The benchmark names double as CEFR labels.C1 AdvancedIELTSIELTSInternational English Language Testing SystemThe 0–9 band test co-owned by the British Council, IDP, and Cambridge. Used for university entry, work, and migration.7.0–8.0TOEFL iBTTOEFL iBTTest of English as a Foreign Language, Internet-Based TestETS's academic English test, the standard route for US university admissions. Scored 0–120, with a 1–6 scale since 2026.1–6 scale: 5.0–5.595–113TOEICTOEICTest of English for International CommunicationETS's workplace English test, big in Japan and Korea. Listening & Reading scores 10–990 and tops out at C1.945–990
- Frequency
- Occasional
- Level
- C1 · Advanced
- Updated
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QR code
englishreference.com/q/addendum