a/the world of difference

a world of difference

1. A stark contrast. There's a world of difference between high school classes and college classes.
2. A vast improvement. A fresh coat of paint has made a world of difference in that old house.
See also: difference, of, world
Farlex Dictionary of Idioms.

a/the ˈworld of difference (between A and B)

(informal) a lot of difference (between A and B): There’s a world of difference between ‘speed’ and ‘haste’.
See also: difference, of, world
Farlex Partner Idioms Dictionary
See also:
  • a world of difference
  • on the fast track
  • come within
  • come within (something)
  • fast track
  • fast-track
  • the fast track
  • fail in
  • fail in (something)
  • another coat of paint