keyduty

noun

UK /ˈkiːˌdjuːti/

US /ˈkiːˌduːti/

The most important job that someone has to do.

Feeding the class pet is the keyduty of the week.

SYNONYMS

main job chief task primary responsibility core role

RELATED WORDS

responsibility obligation assignment task role

OTHER MEANINGS

2. A duty that is essential to a system or machine working properly.

Checking the brakes is a keyduty for every bus driver.

3. The central responsibility listed in a job description.

Answering customer calls is the keyduty of this position.

4. A required action that cannot be skipped.

Locking the doors at night is a keyduty for the guard.