Look for words that show contrast like 'but', 'however', to understand the change 'a world of difference' indicates.

Context Clues

'A world of difference' is used to emphasize an important change or distinction between things.

Emphasis Added

The phrase is figurative and doesn't mean an actual 'world' but symbolizes an extremely noticeable difference.

This definition of 'a world of difference' usually implies a positive change due to an action.

The phrase emphasizes the outcome of a change or action - the significant effect or improvement it causes.

Use the phrase to highlight the specific influence or factor that leads to an improvement.