Use 'crucial' to talk about things that are very important. These things can change the result or outcome. It means you must pay attention to them.
It is crucial to study for the exam.
Good food is crucial for health.
Sometimes, 'crucial' describes a moment or time that decides the future. It means the moment is very important.
This is a crucial moment in the game.
The crucial point is when we decide.
'Crucial' can describe things that are very important in science or technology. These are factors needed for correct results or survival.
Water quality is crucial for marine life.
Temperature control is crucial in chemistry.
'Crucial' can describe things that are needed for something to work or succeed. Without these things, success is difficult.
Trust is crucial in a good friendship.
Practice is crucial for learning music.
People use 'crucial' to talk about hard tests or challenges that decide success or failure. It means the challenge is very important.
The final exam is a crucial test of skill.
This job interview is a crucial challenge.
In old or rare uses, 'crucial' meant something shaped like a cross or related to a cross. This meaning is not common today.
The symbol had a crucial design from old times.
Crucial marks were used on maps long ago.
