Change the line spacing in Word

1. Select Design > Paragraph Spacing.
2. Hover the cursor over each option to see a preview, and then select the option you want.
   
   For single spacing, select No Paragraph Space.

Change line spacing for part of your document

1. Select the paragraphs you want to change.
2. Select Home > Line and Paragraph Spacing, and choose the spacing you want.
   
3. To customize spacing, select Line Spacing Options. You can adjust several areas including spacing before and after paragraphs. 

See Also

Add and format text

Create a bulleted or numbered list 

Apply styles

Apply themes

Word Help and Learning