prevention

noun pre·ven·tion \ pri-ˈven(t)-shən \
|Updated on: 9 Aug 2018

Definition of prevention

: the act of preventing or hindering

Examples of prevention in a Sentence

  1. Exercise and diet play a role in the prevention of heart disease.

  2. good crowd control is crucial to the prevention of riots

Recent Examples of prevention from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'prevention.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of prevention

15th century

in the meaning defined above

See Words from the same year
NEW! Time Traveler


PREVENTION Defined for English Language Learners

prevention

Definition of prevention for English Language Learners

  • : the act or practice of stopping something bad from happening : the act of preventing something


PREVENTION Defined for Kids

prevention

noun pre·ven·tion \ pri-ˈven-shən \

Definition of prevention for Students

: the act or practice of keeping something from happening
  • the prevention of fires


Seen and Heard

What made you want to look up prevention? 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

fullness to the point of excess

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Spelling Words Quiz

  • alphabet-pasta-spelling-help
  • Which is the correct spelling?
Name That Thing

Test your visual vocabulary with our 10-question challenge!

TAKE THE QUIZ
SCRABBLE® Sprint

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!