You can use the list of suggested terms to correct terms highlighted by the spell check.
Prerequisite
The dictionary contains many terms that can be offered as a replacement for the selected one.
Procedure
When entering text, right-click a term that the spell check has marked with a zigzag line. The pop-up menu opens. Alternative terms from the dictionary are suggested here.
Click the term that will replace the highlighted term.
The highlighted term will be replaced with the term you have selected from the dictionary.