The noun is pronounced /mɪsju:s/. The verb is pronounced /mɪsju:z/.
( misused)
1.
The misuse of something is incorrect, careless, or dishonest use of it.
...the misuse of power and privilege...
The effectiveness of this class of drug has, however, led to their misuse.
N-VAR : usu with supp , oft N of n
2.
If someone misuses something, they use it incorrectly, carelessly, or dishonestly.
You are protected instantly if a thief misuses your credit card...
VERB : V n