add

[ 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)

to perform the arithmetic operation of addition: children learning to add and subtract.

to be or serve as an addition (usually followed by to): His illness added to the family's troubles.

noun

Journalism. copy added to a completed story.

Verb Phrases

add up to, to signify; indicate: The evidence adds up to a case of murder.

OTHER WORDS FOR add

1 affix, append, attach, adjoin.

2 total, sum.

See synonyms for add on Thesaurus.com

QUIZ

CAN YOU ANSWER THESE COMMON GRAMMAR DEBATES?

There are grammar debates that never die; and the ones highlighted in the questions in this quiz are sure to rile everyone up once again. Do you know how to answer the questions that cause some of the greatest grammar debates?

Question 1 of 7

Which sentence is correct?

His boss, whom he admires, is waiting to meet with him about the big project.

His boss, who he admires, is waiting to meet with him about the big project.

TAKE THE QUIZ TO FIND OUT

Idioms about add

add up,

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

1325–75; Middle English adden<Latin addere, equivalent to ad-ad- + -dere to put (combining form; see do¹)

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

WORDS THAT MAY BE CONFUSED WITH add

1. ad, add , odd2. addable , edible3. adds , ads, adz

Other definitions for add (2 of 2)

ADD

[ ey-dee-dee ]

/ ˈeɪˈdiˈdi /

abbreviation, noun

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)

add

/ (æd) /

verb

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

noun

informal an instance of adding someone to one's list of contacts on a social networking site, esp MySpaceThanks for the add!

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)

ADD

abbreviation for

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

ADD

Abbreviation of attention deficit disorder