Synonyms: immense, huge, Brobdingnagian, vast
Definition: unusually great in size or amount or degree or especially extent or scope
Usage: huge government spending; huge country estates; huge popular demand for higher education; a huge wave; the Los Angeles aqueduct winds like an immense snake along the base of the mountains; immense numbers of birds; at vast (or immense) expense; the vast reaches of outer space; the vast accumulation of knowledge...which we call civilization- W.R.Inge
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