Synonyms: enormous, tremendous
Definition: extraordinarily large in size or extent or amount or power or degree
Usage: an enormous boulder; enormous expenses; tremendous sweeping plains; a tremendous fact in human experience; that a whole civilization should be dependent on technology- Walter Lippman; a plane took off with a tremendous noise
Definition: above average in size or number or quantity or magnitude or extent
Usage: a large city; set out for the big city; a large sum; a big (or large) barn; a large family; big businesses; a big expenditure; a large number of newspapers; a big group of scientists; large areas of the world