Actively engaged in an assigned task, duty or occupation.

That which one is morally or legally obligated to do. / The state of being at work and responsible for or doing a particular task. / A tax placed on imports or exports; a tariff.

Alternative spelling of on duty

plural of Duty

A surname.

Obsolete spelling of duty

The state of being dutiful.

plural of duty

Accepting of one's legal or moral obligations and willing to do them well, and without complaint. / Pertaining to one's duty; demonstrative of one's sense of duty.

On which duty must be paid; taxable on import or export.