principal commitment

noun phrase
UK /ˈprɪn.sə.pəl kəˈmɪt.mənt/
US /ˈprɪn.sə.pəl kəˈmɪt.mənt/

The most important promise you make to do something.

Finishing her homework was her principal commitment for the evening.


OTHER MEANINGS

2. The main thing a person has agreed to give time or effort to.

His principal commitment is to his family.

3. The most important duty in a job or role.

For a teacher, the principal commitment is helping students learn.

4. A serious promise that comes before other promises.

She made her principal commitment to the team before joining the club.