crucial

play
adjective cru·cial \ˈkrü-shəl\

Definition of crucial

  1. 1 archaic :  cruciform

  2. 2 a :  important or essential as resolving a crisis :  decisive b :  marked by final determination of a doubtful issue <the crucial game of a series> c :  important, significant <what use we make of them will be the crucial question — Stanley Kubrick>

Examples of crucial in a sentence

  1. Vitamins are crucial for maintaining good health.

  2. It's crucial that we arrive before 8 o'clock.

  3. Teachers are crucial to the success of the school.

  4. She played a crucial role in the meeting.

Origin and Etymology of crucial

French, from Latin cruc-, crux cross


First Known Use: 1706

Synonym Discussion of crucial

acute, critical, crucial mean of uncertain outcome. acute stresses intensification of conditions leading to a culmination or breaking point <an acute housing shortage>. critical adds to acute implications of imminent change, of attendant suspense, and of decisiveness in the outcome <the war has entered a critical phase>. crucial suggests a dividing of the ways and often a test or trial involving the determination of a future course or direction <a crucial vote>.

CRUCIAL Defined for English Language Learners

crucial

play
adjective cru·cial \ˈkrü-shəl\

Definition of crucial for English Language Learners

  • : extremely important


CRUCIAL Defined for Kids

crucial

play
adjective cru·cial \ˈkrü-shəl\

Definition of crucial for Students

  1. 1 :  being a final or very important test or decision :  decisive <a crucial battle>

  2. 2 :  very important :  significant <Water is a crucial element in our weather.>



Seen and Heard

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

WORD OF THE DAY

skillful, artistic, or intricate

Get Word of the Day daily email!

WORD GAMES

Take a 3-minute break and test your skills!

  • hot-dog--hot-dog--hot-dog--hot-dog-cat
  • Which of the following words is not a synonym for ‘a young person’?
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