a task, service, or function arising from one's position or job, or such tasks etc considered collectively
assigned military or official service or business
just back from a tour of duty
a moral or legal obligation
the force of moral obligation
respectful or obedient conduct due to parents and superiors
a tax, e.g. on imports or the transfer of property esp on imports
technical a measure of efficiency expressed in terms of the amount of work done in relation to the energy consumed
do duty for
to serve as a substitute for (something)
on/off duty
engaged or not engaged in one's usual work
[Middle English duete from Anglo-French dueté, from Old French deu: see due1]