Excessive play in steering wheel ?

This could be a real dumb question. But my 66 dart has some serious play when steering. Like several inches each way when I turn the steering wheel. However the power steering is fracking awesome. Turns easier than my new cars.
So what is the culprit ? And is it an easy fix? Are there any other fixes you would do at the same time? Like shocks?
I want to say that I have worn Tie Rods. But I don't really know what that means.

yep thats real dumb.you dont know what tie rods are?yep thats pretty dumb.you need to become more aquainted with your mopar.maybe learn a little about your car.im not trying to burn you down,but come on dude.im going to just say,take it to a shop,if you really dont know what tie rods are,how do you know they are worn?someone tell you?