adverb

greatly

To a large degree.

Regular exercise greatly improves her mood and helps her sleep.

Etymology

Great denotes large size or extent. The adverb applies that largeness to degree, indicating that something happens or is felt to a substantial extent.

More examples

  • We greatly appreciate your help with the move.
  • Prices differ greatly from one store to another.
  • The new bridge has greatly reduced travel time.

Forms

greatly

great adjective — Large in size, amount, or degree.

Similar words

considerably
Emphasizes a noticeably large amount, extent, or difference.
substantially
Often emphasizes a large, meaningful change or difference.