characterized by often poignant difference or incongruity between what is expected and what actually is; "madness, an ironic fate for such a clear thinker"; "it was ironical that the well-planned scheme failed so completely"
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
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"