To make a selected text bold in MS Word, You can use any of the following methods:
Press Ctrl + B ( Windows ) or Command + B ( Mac )
Go to the Home tab and click on the Bold button in the Font group
Right - click on the selected text and choose Font > Bold
Use the Font dialog box: Select the text, go to the Home tab, click on the Font dialog box launcher , and select Bold from the font style dropdown menu
These methods will apply bold formatting to the selected text in MS Word.