add

¹ American  

[ad] / æd /

verb (used with object)

1. 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.

   Synonyms:

   adjoin, attach, append, affix

2. to find the sum of (often followed byup ).

   Add this column of figures.

   Add up the grocery bills.

   Synonyms:

   sum, total

3. to say or write further.

4. to include (usually followed byin ).

   Don't forget to add in the tip.

---

verb (used without object)

1. to perform the arithmetic operation of addition.

   children learning to add and subtract.

2. to be or serve as an addition (usually followed byto ).

   His illness added to the family's troubles.

noun

1. Journalism. copy added to a completed story.

verb phrase

1. add up to to signify; indicate.

   The evidence adds up to a case of murder.

idioms

1. add up,

   1. to make the desired, expected, or correct total.

      These figures don't add up right.

   2. to seem reasonable or consistent; be in harmony or accord.

      Some aspects of the story didn't add up.

ADD ² American  

[ey-dee-dee] / ˈeɪˈdiˈdi /

abbreviation

1. attention deficit disorder: the inattentive subtype of ADHD, usually marked by distractibility and difficulties with executive function.

---

ADD ¹ British  

abbreviation

1. attention deficit disorder

---

add ² British  

/ æd /

verb

1. to combine (two or more numbers or quantities) by addition

2. to increase (a number or quantity) by another number or quantity using addition

3. to join (something) to something else in order to increase the size, quantity, effect, or scope; unite (with)

   to add insult to injury

4. to have an extra and increased effect (on)

   her illness added to his worries

5. (tr) to say or write further

6. to include

---

noun

1. informal an instance of adding someone to one's list of contacts on a social networking site, esp MySpace

   Thanks for the add!

ADD Scientific  

1. Abbreviation of attention deficit disorder

---

Other Word Forms

• addable adjective
• addedly adverb
• addible adjective
• misadd verb
• readd verb (used with object)
• unaddable adjective
• unadded adjective
• unaddible adjective

Etymology

Origin of add¹

First recorded in 1325–75; Middle English adden, from Latin addere, equivalent to ad- ad- + -dere “to put” (combining form; do ¹ )

Origin of ADD²

First recorded in 1975–80

Example Sentences

President Evariste Ndayishimiye, in a message on X, expressed his condolences to all Burundians, adding that the authorities are "here to help".

From BBC

After more than 100 campaign stops his message has been shortened to "Now": the words "or never" have been crossed out, adding to the urgency.

From BBC

Winkleman added that cruise lines typically have a long list of clauses in their passenger contracts that address any number of scenarios, from changing itineraries with little notice to, yes, imposing a fuel surcharge.

From MarketWatch

Respondents to the survey said the war is adding to uncertainty and raising costs.

From The Wall Street Journal

The current requirement that lenders use three credit scores—known as tri-merge—is an anachronism and adds unnecessary costs to borrowers.

From The Wall Street Journal

Related Words

• boost
• continue
• include
• reply