[noun suhp-luh-muhnt; verb suhp-luh-ment]
something added to complete a thing, supply a deficiency, or reinforce or extend a whole.
a part added to a book, document, etc., to supply additional or later information, correct errors, or the like.
a part, usually of special character, issued as an additional feature of a newspaper or other periodical.
Geometry. the quantity by which an angle or an arc falls short of 180° or a semicircle.
verb (used with object)
to complete, add to, or extend by a supplement.
to form a supplement or addition to.
to supply (a deficiency).
Origin of supplement
Synonyms for supplement
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
an addition designed to complete, make up for a deficiency, etc
a section appended to a publication to supply further information, correct errors, etc
a magazine or section inserted into a newspaper or periodical, such as one with colour photographs issued every week
- either of a pair of angles whose sum is 180°
- an arc of a circle that when added to another arc forms a semicircleAbbreviation: sup, supp
(tr) to provide a supplement to, esp in order to remedy a deficiency
Word Origin for supplement
C14: from Latin supplēmentum, from supplēre to supply 1
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
late 14c., from Latin supplementum "something added to supply a deficiency," from supplere (see supply (v.)).
1829, from supplement (n.). Related: Supplemented; supplementing.
Online Etymology Dictionary, © 2010 Douglas Harper