Crucial | Mean of crucial in English Dictionary

/ˈkruːʃəl/

• extremely important
1. Vitamins are crucial for maintaining good health.
2. Eggs are a crucial [=essential] ingredient in this recipe.
3. a crucial distinction/difference
4. It's crucial that we arrive before 8 o'clock.
5. Teachers are crucial to the success of the school.
6. She played a crucial role in the meeting.
7. Tonight's game is the crucial [=decisive] game of the series. [=whoever wins this game will win the series]
8. a crucial decision