You can enable the spell check so that terms are checked as you type. If they are not found in the dictionary they are marked with a zigzag line.
Depending on how the spell check is configured words written in uppercase letters are either checked or not. The same applies to words that are combined with a number.
While entering text you can decide whether a marked term should continue to be marked as incorrect. If not, the following possibilities for preventing the term from being marked are available:
You can specify that all subsequent occurrences of the terms will be ignored. From then on, all occurrences of the term are no longer marked as long as the program is open. Only after you close and restart the program, will the term be marked as incorrect again.
You can add terms to the dictionary. Now the word will no longer be marked when text is entered or changed. Words that you have added to the dictionary are offered in the list of suggestions if a similarly written word is unknown.
You can correct the term by clicking the relevant term in the list of suggested terms. This term then replaces the marked term. The list of suggestions contains alternative terms available in the dictionary for the marked terms.