add

verb

1. (transitive)To join or unite (e.g. 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.
2. To sum up; to put together mentally; to add up.

   “to add numbers”

   “[…]as easily as he can add together the ideas of two days or two years.”

   “I could add and subtract and multiply and divide, but I entered the wilderness when words became equations.”

3. (transitive)To combine elements of (something) into one quantity.

   “to add a column of numbers”

4. (transitive)To give by way of increased possession (to someone); to bestow (on).

   “The Lord shall add to me another son.”

   “Back to thy punishment, False fugitive, and to thy speed add wings.”

5. (transitive)To append (e.g. a statement); to say further information.

   “He added that he would willingly consent to the entire abolition of the tax”

   “"Bless your dear heart," she said, "I am sure I can tell you of a way to get back to Kansas." Then she added, "But, if I do, you must give me the Golden Cap."”

6. (intransitive)To intensify; to augment; to increase.

   “It adds to our anxiety.”

   “I will add to your yoke”

   “Mostly, the microbiome is beneficial.[…]Research over the past few years, however, has implicated it in diseases from atherosclerosis to asthma to autism. Dr Yoshimoto and his colleagues would like to add liver cancer to that list.”

7. (intransitive)To perform the arithmetical operation of addition.

   “He adds rapidly.”

8. (intransitive)To summon minions or reinforcements.

   “Typically, a hostile mob will add whenever it's within the aggro radius of a player.”

9. (Internet, transitive)To add someone as a friend.

noun

1. The addition of a song to a station's playlist.

   “In a typical week, 10 to 15 songs may be up for consideration as “adds” of new songs for the station's playlist.”

   “Effectiveness of their work is measured by the number of “adds” they receive on the airplay charts of major trades.”

2. An act or instance of adding.

   “List the number of adds and multiplies for each of the forms (6) , (7), and (8).”

3. An additional enemy that joins a fight after the primary target.

   “When the player has fought the boss for one minute, two adds will arrive from the back and must be dealt with.”

4. (abbreviation, alt-of, initialism)Initialism of attention deficit disorder.
5. (abbreviation, alt-of, initialism)Initialism of accidental death and dismemberment.

   “Although not sought by QuesTech, the dismemberment portion of the policy was nonetheless issued as an integral part of Hartford’s standard ADD policy.”

   “ADD Insurance: Also known as Accidental Death and Dismemberment policy, […]”

   “You represent that the ADD Plan was established in 1987 to provide accidental death and disemberment insurance to ALPA members and certain ALPA employees.”

   “Life plus accidental death and dismemberment; disability income; in-hospital indemnity; major medical; ADD/250 high-limit coverage accidental loss of life, limbs, sight, speech, or hearing.”

   “Accidental Death and Dismemberment (ADD)”

6. A designation on prerecorded compact discs indicating that the contents were recorded in analog but mixed and mastered in digital.