Every store initially has a default store view. You create other store views in order to support different languages in your store as well as for other purposes.
In order to create a new Magento 2 store view go to Stores > Settings > All stores. There, you have to find and press the Create Store View button.
Store View Information
- Choose the Store the newly created store view will be assigned to.
- Give the Magento store view a Name and a Code.
- Enable or disable the store view.
- Set the Sort Order of the store view. It defines the store view position in a list of Magento store views.
After you've entered all the information don't forget to press the Save Store View button.
Once you've created a store view you will be notified about its successful creation and it will appear to the list of execting Magento store views.
Once you've created a store view, do the Magento reindex, run the CLI command:
php bin/magento indexer:reindex
That is how newly created store view will be displayed on the storefront.
New Store View Creation is just one of the series of articles about How to Configure Multi-Language Magento Website? which include information about the language packs installation, useful multi-language store extensions, product&category, CMS pages&blocks, email templates, and other translations in Magento 2 website. You should definitely get acquainted with them in order to know how to manage a multilanguage store.