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| 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. |
| 2. | to find the sum of (often fol. by up): Add this column of figures. Add up the grocery bills. |
| 3. | to say or write further. |
| 4. | to include (usually fol. by in): Don't forget to add in the tip. |
| 5. | to perform the arithmetic operation of addition: children learning to add and subtract. |
| 6. | to be or serve as an addition (usually fol. by to): His illness added to the family's troubles. |
| 7. | Journalism. copy added to a completed story. |
| 8. | add up to, to signify; indicate: The evidence adds up to a case of murder. |
| 9. | add up,
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| attention deficit disorder. |
| add (ād) v. add·ed, add·ing, adds v. tr.
add up
Idiom(s): add up toTo constitute; amount to: The revisions added up to a lot of work. [Middle English adden, from Latin addere : ad-, ad- + dare, to give; see dō- in Indo-European roots.] add'a·ble, add'i·ble adj. |
| ADD abbr. attention deficit disorder |
| attention deficit disorder n. Abbr. ADD A syndrome, usually diagnosed in childhood, characterized by a persistent pattern of impulsiveness, a short attention span, and often hyperactivity, and interfering especially with academic, occupational, and social performance. |
ADD abbr.
attention deficit disorder
ADD
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