A measure of efficiency expressed as the amount of work done per unit of energy used.
from The American Heritage Dictionary of the English Language, 4th Edition
A service, function, or task assigned to one, especially in the armed forces: hazardous duty.
from The American Heritage Dictionary of the English Language, 4th Edition
A tax charged by a government, especially on imports.
from The American Heritage Dictionary of the English Language, 4th Edition
An act or a course of action that is required of one by position, social custom, law, or religion: Do your duty to your country.
from The American Heritage Dictionary of the English Language, 4th Edition
Function or work; service: jury duty. See Synonyms at function.
from The American Heritage Dictionary of the English Language, 4th Edition
idiom
Duty bound Obliged: You are duty bound to help your little sister and brother.
from The American Heritage Dictionary of the English Language, 4th Edition
Off duty Not engaged in or responsible for assigned work.
from The American Heritage Dictionary of the English Language, 4th Edition
On duty Engaged in or responsible for assigned work.
from The American Heritage Dictionary of the English Language, 4th Edition
adjective
Done as a duty.
from Free Scrabble Dictionary
Being on duty assigned to specified tasks or functions.
from Free Scrabble Dictionary
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