A disownment or disavowal
An assertion of untruth.
Refusal to believe that a problem exists.
A defense mechanism involving a refusal to accept the truth of a phenomenon or prospect.
Refusal to admit responsibility for wrongdoing.
A refusal or failure to provide or grant something that is requested or desired.
Negationism, denialism of historical facts or accepted interpretation.
The negation in logic.
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.
The efficiency of an engine, especially a steam pumping engine, as measured by work done by a certain quantity of fuel; usually, the number of pounds of water lifted one foot by one bushel of coal (94 lbs. old standard), or by 1 cwt. (112 lbs., England, or 100 lbs., United States).