1. people who use or operate something, especially a computer system, software, or service
2. people who regularly consume illegal drugs
Usage: informal

Examples

• The new software has over a million users worldwide.
• Social media users spend hours scrolling through their feeds.
• The library provides computer access for all users.
• Website users can create accounts to save their preferences.
• The app developers listen to feedback from their users.
• Many users complained about the recent update.
• Drug users often need professional help to overcome addiction.