Simple Definition of crucial
: extremely important
Examples of crucial
Vitamins are crucial for maintaining good health.
It's crucial that we arrive before 8 o'clock.
Teachers are crucial to the success of the school.
She played a crucial role in the meeting.
Origin of crucial
French, from Latin cruc-, crux cross
First Known Use: 1706
Synonym Discussion of crucial
CRUCIAL Defined for Kids
Seen and Heard
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