B1verb2K

Expand

UK //ɪkˈspænd//US //ɪkˈspænd//

Definition

To increase in size, number, or amount.

In simple words: to make something bigger or more in amount

Examples

  • The company plans to expand its operations into new markets.
  • As the balloon is filled, it begins to expand quickly.
  • The lecture will expand on the theories discussed in the last class.
  • She wants to expand her knowledge of foreign languages.
  • The universe is believed to expand continuously over time.

Usage notes

Use 'expand' for increasing size, numbers, or range. It's appropriate in academic or formal contexts but can also be used informally. Avoid using it in contexts where the meaning is of a steady state rather than change.

Grammar pattern

expand + object

Memory hint

Think of a balloon that 'expands' when filled with air.

Collocations

  • expand a business
  • expand horizons
  • expand your mind
  • expand on an idea
  • expand the service

Synonyms

  • enlarge
  • increase
  • amplify
  • broaden
  • widen

Antonyms

  • shrink
  • contract
  • reduce

Common mistakes

  • Confusing 'expand' with 'extend', which refers to prolonging something rather than making it larger.
  • Using 'expand' without an object (e.g., 'expand' instead of 'expand it').
  • Incorrectly using 'expand' in situations where 'grow' or 'increase' is more appropriate.