What's Trending Now
More Trending Words
by definition
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.
Indulge Your Inner Word Nerd
Word by Word Definitions
definitionplay
: an act of determining
: the formal proclamation of a Roman Catholic dogma
: a statement expressing the essential nature of something
See the full definition of definition
Seen and Heard
What made you want to look up by definition? Please tell us where you read or heard it (including the quote, if possible).
Writing? Check your grammar now!