(often followed by 'of') a large number or amount or extent. Synonyms: batch, deal, flock, good deal, hatful, heap, lot, mass, mess, mickle, mint, mountain, muckle, passel, peck, pile, plenty, pot, quite a little, raft, sight, slew, spate, stack, tidy sum, wad. "A deal of trouble" , "A lot of money" , "He made a mint on the stock market" , "See the rest of the winners in our huge passel of photos" , "It must have cost plenty" , "A slew of journalists" , "A wad of money"