You can use speech-to-text on Microsoft Word through the "Dictate" feature, which lets you write using your own voice.

You can use the speech-to-text feature on Windows to dictate text in any window, document, or field that you could ordinarily ...

Sometimes a word can be so hard to spell that any attempts are too garbled for autocorrect to offer helpful suggestions. Whenever I find myself struggling to spell a word, I double-tap the Command key ...