How do I change the letter size in Word?

How do I change the letter size in Word?
Change the size of selected text

Select the text or cells with text you want to change. To select all text in a Word document, press Ctrl + A.
On the Home tab, click the font size in the Font Size box. You can also type in any size you want, within the following limits:

Change the size of selected text
  1. Select the text or cells with text you want to change. To select all text in a Word document, press Ctrl + A.
  2. On the Home tab, click the font size in the Font Size box. You can also type in any size you want, within the following limits: