"misuse" in the noun sense
1. misuse, abuse
improper or excessive use
"the abuse of public funds"
"misuse" in the verb sense
1. misapply, misuse
apply to a wrong thing or person apply badly or incorrectly
"The words are misapplied in this context"
"You are misapplying the name of this religious group"
2. pervert, misuse, abuse
change the inherent purpose or function of something
"Don't abuse the system"
"The director of the factory misused the funds intended for the health care of his workers"
Source: WordNet® (An amazing lexical database of English)
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