[ ad ]
/ æd /
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verb (used with object)
to unite or join so as to increase the number, quantity, size, or importance: to add two cups of sugar; to add a postscript to her letter; to add insult to injury.
to find the sum of (often followed by up): Add this column of figures. Add up the grocery bills.
to say or write further.
to include (usually followed by in): Don't forget to add in the tip.
verb (used without object)
Journalism. copy added to a completed story.
add up to, to signify; indicate: The evidence adds up to a case of murder.
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Question 1 of 7
Which sentence is correct?
Idioms about add
- to make the desired, expected, or correct total: These figures don't add up right.
- to seem reasonable or consistent; be in harmony or accord: Some aspects of the story didn't add up.
Origin of add
OTHER WORDS FROM add
add·a·ble, add·i·ble, adjectiveadd·ed·ly, adverbmis·add, verbre·add, verb (used with object)
un·add·a·ble, adjectiveun·add·ed, adjectiveun·add·i·ble, adjective
Other definitions for add (2 of 2)
[ ey-dee-dee ]
/ ˈeɪˈdiˈdi /
attention deficit disorder: the inattentive subtype of ADHD, usually marked by distractibility and difficulties with executive function.
Origin of ADD
First recorded in 1975–80
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
British Dictionary definitions for add (1 of 2)
/ (æd) /
to combine (two or more numbers or quantities) by addition
(tr foll by to) to increase (a number or quantity) by another number or quantity using addition
(tr often foll by to) to join (something) to something else in order to increase the size, quantity, effect, or scope; unite (with)to add insult to injury
(intr foll by to) to have an extra and increased effect (on)her illness added to his worries
(tr) to say or write further
(tr foll by in) to include
informal an instance of adding someone to one's list of contacts on a social networking site, esp MySpaceThanks for the add!
See also add up
Word Origin for add
C14: from Latin addere, literally: to put to, from ad- to + -dere to put
British Dictionary definitions for add (2 of 2)
attention deficit disorder
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
Scientific definitions for add
Abbreviation of attention deficit disorder
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.