I. ˈad, ˈaa(ə)d verb
( -ed/-ing/-s )
Etymology: Middle English adden, from Latin addere, from ad- + -dere to put — more at do
transitive verb
1.
a. : to join, annex, or unite (as one thing to another) so as to bring about an increase (as in number, size, or importance) or so as to form one aggregate
added music to the list of his interests
adds form to substance and achieves artistic unity
adding a wing to the house
b. : to put together mentally : unite or form a single whole in the mind
add together the ideas of two days — John Locke
2. : to say or write further : go on to say or write
that, he added, was a mistake
3. obsolete : give , bestow
all these things shall be added unto you — Mt 6:33 (Authorized Version)
4. : to combine (two or more numbers or quantities or a group or column of numbers or quantities) into one sum : find the total sum of by combining
5. : to join or unite (another thing) to itself
a chemical compound that adds chlorine
6. : to include (a person) as a member of a group or party : count
don't forget to add me in
intransitive verb
1.
a. : to perform the mathematical operation of addition
b. : to come together or unite in or as if in the mathematical process of addition
the facts … added together to build up a theory which was indisputable — Harvey Graham
2. : to be or serve as an addition : increase , augment
the novel added to his reputation
: make an addition : enlarge
they added to the house the next year
— used with to
II. noun
( -s )
: copy to be added to a news story
a new add on the hurricane story
III. abbreviation
1. addendum
2. addition
3. address
IV. noun
: an instance of addition
the computer does an add in 7 microseconds