C1adverbformal10K+

Thereby

UK /["/ˌðeəˈbaɪ/"]/US /["/ˌðerˈbaɪ/"]/

Definition

used to introduce the result of the action or situation mentioned

In simple words: in that way; as a result

Examples

  • Regular exercise strengthens the heart, thereby reducing the risk of heart attack.

Usage notes

Use 'thereby' in formal writing to indicate the result of an action. It's less common in everyday conversation and may sound overly formal.

Grammar pattern

thereby + gerund (verb ending in -ing)

Memory hint

Think of 'there by' as a sign pointing to the result of an action.

Collocations

  • thereby improving
  • thereby increasing
  • thereby allowing

Synonyms

  • thus
  • hence
  • consequently
  • accordingly
  • as a result

Antonyms

  • indirectly
  • without effect
  • in no way

Common mistakes

  • Using 'thereby' in informal speech when it's not appropriate.
  • Confusing 'thereby' with 'therefor', which has a different meaning.
  • Neglecting to pair 'thereby' with a gerund.