Definition of by definition
: because of what something or someone is : according to the definition of a word that is being used to describe someone or something
A volunteer by definition is not paid. A glider is by definition an aircraft with no engine.
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Odd Habits and Quirks
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- Which of the following best describes an easily irritated person?

Can you spell these 10 commonly misspelled words?
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Merriam-Webster unabridged
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