1

whereby

play
conjunction where·by \hwer-ˈbī, wer-, (ˌ)(h)wər-\

Definition of whereby

  1. :  by, through, or in accordance with which

First Known Use of whereby

13th century


2

whereby

adverb where·by

Definition of whereby

obsolete

  1. :  by what :  how

First Known Use of whereby

14th century


WHEREBY Defined for English Language Learners

whereby

play
conjunction

Definition of whereby for English Language Learners

  • : by which : according to which


WHEREBY Defined for Kids

whereby

play
adverb where·by \hwer-ˈbī, wer-\

Definition of whereby for Students

  1. :  by or through which We made a deal whereby we each took turns.



Seen and Heard

What made you want to look up whereby? Please tell us where you read or heard it (including the quote, if possible).

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

WORD OF THE DAY

to relieve or lessen

Get Word of the Day daily email!

Test Your Vocabulary

Time Traveler Quiz: Which Word Came First?

  • time-traveler-quiz-which-word-came-first
  • Which came first?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Add Diction

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!