C1adverbformal10K+

Whereby

UK /["/weəˈbaɪ/"]/US /["/werˈbaɪ/"]/

Definition

by which; because of which

In simple words: by which

Examples

  • They have introduced a new system whereby all employees must undergo regular training.

Usage notes

Use 'whereby' in formal contexts, often in legal or academic writing. Avoid in casual conversation.

Grammar pattern

whereby + clause

Memory hint

Think of 'where' and 'by', like a map showing directions!

Collocations

  • establish whereby
  • provision whereby
  • arrangement whereby

Synonyms

  • by which
  • through which
  • in which

Antonyms

  • without which
  • not by which
  • not through which

Common mistakes

  • Using 'whereby' in informal speech.
  • Confusing 'whereby' with 'where' or 'by which'.
  • Incorrectly placing 'whereby' at the beginning of a sentence.