Open Finder
Go to the Applications folder
Find the app you want to delete
Drag the app to the Trash
Or right-click the app and choose Move to Trash
Enter your Mac password if prompted
Empty the Trash to permanently remove the app
If the app is open, quit it first before deleting
If the app came from the App Store, you can also delete it from Launchpad by clicking and holding the app, then clicking the X if it appears