This is the 1877th most frequent French word.
nécessite
Necessity.
In this sentence, 'nécessite' is used as a verb meaning 'requires'. It indicates that great concentration is essential for completing the task.
Cette tâche nécessite une grande concentration.
This task requires great concentration.
Here, 'nécessite' functions as a noun, 'la nécessite', meaning 'necessity'. It emphasizes the importance of adequate sleep.
La nécessite de dormir suffisamment est souvent sous-estimée.
The necessity of sleeping enough is often underestimated.
In this instance, 'nécessite' is part of a phrase 'de nécessité immédiate', describing the things that are urgently needed or necessary.