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"
make an addition by combining numbers; "Add 27 and 49, please!"
state or say further; "`It doesn't matter,' he supplied"
constitute an addition; "This paper will add to her reputation"
have offspring or young; "The deer in our neighborhood reproduce madly"; "The Catholic Church tells people to procreate, no matter what their economic situation may be"
make a copy or equivalent of; "reproduce the painting"
recreate an idea, mood, atmosphere, etc. as by artistic means; "He reproduced the feeling of sadness in the portrait"