add in WordNet English dictionary

1. make an addition (to); join or combine or unite with others; increase the quality, quantity, size or scope of
   "We added two students to that dorm room"; "She added a personal note to her letter"; "Add insult to injury"; "Add some extra plates to the dinner table"
   add 
   
2. make an addition by combining numbers
   "Add 27 and 49, please!"
   add  add together 
   
3. determine the sum of
   "Add all the people in this town to those of the neighboring town"
   total  tot  tot up  sum  sum up  summate  tote up  add  add together  tally  add up 
   
4. state or say further
   "`It doesn't matter,' he supplied"
   add  append  supply 
   
5. bestow a quality on
   "Her presence lends a certain cachet to the company"; "The music added a lot to the play"; "She brings a special atmosphere to our meetings"; "This adds a light note to the program"
   lend  impart  bestow  contribute  add  bring 
   
6. constitute an addition
   "This paper will add to her reputation"
   add