misuse

The harmful use of drugs.

The harmful use of alcohol.

The harmful use of any psychoactive substances, including alcohol and illicit drugs.

Misuse with significant negative consequences.

Intentional or purposeful misuse.

Misuse that might have occurred.

Extremely serious or unacceptable misuse.

Misuse that is claimed but not yet proven.

Misuse that constitutes a crime.

Unauthorized or improper use of computer resources.

To misuse something in an extreme and unacceptable way.

Often used incorrectly by many people.

As a result of being used incorrectly.

To take action to stop misuse from happening.

To put an end to existing misuse.

To formally examine the facts of a case of misuse.

Used to specify what is being misused, e.g., misuse of funds.