Use Browser-based Spellcheck
You can use your browser's spell checking feature while you are creating and editing content in both plain text and rich text fields in the authoring editor. Browser-based spellcheck can identify errors and suggest corrections while you type, which helps you write more quickly and accurately. Spell checking is enabled by default in the product configuration, but administrators can disable it. It is available in most popular browsers, but you may need to enable or configure it in order to use it.
Using your browser's spellcheck depends on how it is implemented and configured in the browser you are using. Typically, the browser indicates misspelled words by underlining them while you are typing. You can then right-click on the underlined word in plain text fields, or Ctrl + right-click in rich text fields, to see suggestions for correcting the spelling. If you select a suggested correction, the browser replaces the misspelled word with your selection.
Keep in mind that the browser's spellcheck process, and the dictionary it uses, are separate from the authoring application. The dictionary that the browser uses is likely to be different from the one that the application provides in the console.