essential

/ɪsˈɛnʃə‍l/

/ɛˈsɛnʃəɫ/, /iˈsɛnʃəɫ/

essential

essentiel

being very important or necessary

Exemples

1. Regular exercise is essential for the healthfulness of your body and mind.

2. The presence of certain fungi, like Penicillium, is essential in the production of some types of cheese.

3. The heater is essential during the chilly nights.

4. Proper breathing techniques are essential in meditation for relaxation.