The Oxford Thesaurus An A-Z Dictionary of Synonyms - add v.

1) join, unite, combine, annex: 5 + 3 denotes that 3 is to be added to 5. 2) total, sum, sum up, combine, count up, reckon, Brit tot (up) , US tote (up) : The computer can add all those figures in a few seconds. 3) continue, go on: 'And I won't take no for an answer', she added. 4) add to. increase, enlarge, amplify, augment, supplement: His articles have added greatly to his reputation as a financial analyst.