Similar words: sudden, crowded, add, a good deal, dedicate, provided, extended, add in. Meaning: [æd] 
adj.in addition to what is usual or expected.
adj.in addition to what is usual or expected. 151. The various Central American countries added their own instruments to this foundation.
More similar words: sudden, crowded, add, a good deal, dedicate, provided, extended, add in, add up, all of a sudden, a good deal of, overcrowded, address, add up to, addition, additional, in addition, in addition to.