Microsoft Word 2010 Turned Off Spell Check?!?!?

Okay so I have Microsoft Word 2010 and I'm not sure how I did it but last night I somehow managed to turn off my spell check because you know how it normally just underlines words in red that are spelt incorrect? Well it's not doing that anymore and I can clearly see that cause I've typed in stupid stuff to check like 'jjsgpajsgoihaogihaohgw;hatwighj' and no red line comes up. So yea does anyone know how I turn my spell check back on?