from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To combine (a column of figures, for example) to form a sum.
- transitive v. To join or unite so as to increase in size, quantity, quality, or scope: added 12 inches to the deck; flowers that added beauty to the dinner table.
- transitive v. To say or write further.
- intransitive v. To find a sum in arithmetic.
- intransitive v. To constitute an addition: an exploit that will add to her reputation.
- intransitive v. To create or make an addition: gradually added to my meager savings.
- add up To be reasonable, plausible, or consistent; make sense: The witness's testimony simply did not add up.
- add up To amount to an expected total: a bill that didn't add up.
- add up To formulate an opinion of: added up the other competitors in one glance.
- idiom add up to To constitute; amount to: The revisions added up to a lot of work.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, or enlarge the magnitude, or so as to form into one aggregate. Hence: To sum up; to put together mentally.
- v. To combine elements of (something) into one quantity.
- v. To give by way of increased possession (to any one); to bestow (on).
- v. To append, as a statement; to say further.
- v. To make an addition. To add to, to augment; to increase.
- v. To perform the arithmetical operation of addition.
- n. An additional enemy that joined the fight after the primary target.
- n. An act or instance of adding.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To give by way of increased possession (to any one); to bestow (on).
- transitive v. To join or unite, as one thing to another, or as several particulars, so as to increase the number, augment the quantity, enlarge the magnitude, or so as to form into one aggregate. Hence: To sum up; to put together mentally
- transitive v. To append, as a statement; to say further.
- intransitive v. To make an addition. To add to, to augment; to increase.
- intransitive v. To perform the arithmetical operation of addition.
from The Century Dictionary and Cyclopedia
- To join or unite into one sum or aggregate.
- To unite, join, attach, annex, or subjoin as an augmentation or accretion; bring into corporate union or relation: with to before the subject of addition, and sometimes without an expressed object when this is implied by the subject: as, add another stone, or another stone to the pile; he continually added
- to his store; to add to one's grief.
- To put into the possession of; give or grant additionally, as to a person.
- To be or serve as an addition; be added: with to: as, the consciousness of folly often adds to one's regret.
- To perform the arithmetical operation of addition.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. bestow a quality on
- v. make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of
- v. make an addition by combining numbers
- v. determine the sum of
- v. constitute an addition
- n. a condition (mostly in boys) characterized by behavioral and learning disorders
- v. state or say further
Middle English adden, from Latin addere : ad-, ad- + dare, to give.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin addere, from ad + dare ("to give, put"). Compare date, do. (Wiktionary)