You can use `db.collection.drop()` method to delete a collection in MongoDB. Here is the syntax:
```
db.collection_name.drop()
```
For example, if you’ve a collection named `users` inside your MongoDB database, you can delete it using the following command:
```
db.users.drop()
```
This command will return `true` if the collection was dropped successfully. Otherwise, it will return `false`.
