definition

[ def-uh-nish-uhn ]
/ ˌdɛf əˈnɪʃ ən /

noun

the act of defining, or of making something definite, distinct, or clear: We need a better definition of her responsibilities.
the formal statement of the meaning or significance of a word, phrase, idiom, etc., as found in dictionaries. An online dictionary resource, such as Dictionary.com, can give users direct, immediate access to the definitions of a term, allowing them to compare definitions from various dictionaries and stay up to date with an ever-expanding vocabulary.
the condition of being definite, distinct, or clearly outlined: His biceps have great muscle definition.
Optics. sharpness of the image formed by an optical system.
Radio and Television. the accuracy of sound or picture reproduction.

QUIZZES

WHO SAID IT: A QUIZ ON PRESIDENTIAL WIT AND WISDOM

Think you know your presidents? Take this quiz and see if you can match the style, wit, and ideology of these memorable lines to the right POTUS.
Question 1 of 9
“I do believe that the buck stops here, that I cannot rely upon public opinion polls to tell me what is right. I do believe that right makes might and that if I am wrong, 10 angels swearing I was right would make no difference.”

Origin of definition

1350–1400; Middle English diffinicioun<Old French diffinition<Latin dēfīnītiōn- (stem of dēfīnītiō), equivalent to dēfīnīt(us) (see definite) + -iōn--ion

OTHER WORDS FROM definition

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for definition

British Dictionary definitions for definition

definition
/ (ˌdɛfɪˈnɪʃən) /

noun

a formal and concise statement of the meaning of a word, phrase, etc
the act of defining a word, phrase, etc
specification of the essential properties of something, or of the criteria which uniquely identify it
the act of making clear or definite
the state or condition of being clearly defined or definite
a measure of the clarity of an optical, photographic, or television image as characterized by its sharpness and contrast

Derived forms of definition

definitional, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012