English

Definition of usefulness noun from the Oxford Advanced Learner's Dictionary

 

usefulness

 noun
noun
BrE BrE//ˈjuːsfəlnəs//
 
; NAmE NAmE//ˈjuːsfəlnəs//
 
[uncountable]
 
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the fact of being useful or possible to use There are doubts about the usefulness of these tests. The building has outlived its usefulness.Extra examples Many people claim that the word has lost its usefulness. The advisory group has outlived its usefulness. The report is of potential usefulness to the government. The theory is of limited usefulness. the drug’s usefulness in the treatment of cancer the exam’s usefulness for ranking students
See the Oxford Advanced American Dictionary entry: usefulness