Can you install Word 2010 without Windows?

To use Boot Camp or Parallels, you need a copy of Windows.
Otherwise, you can use Word 2011 for Mac.

Thank you @Vortico, first straight answer!

Try Open Office. I use it on my Windoze machine and on my Linux machine.

You will need Windows whichever way you go. Of the two, Boot Camp is probably preferable if for no reason other than price.

Or you could just go with Word 2011 for Mac and saved yourself a lot of hassle and a bit of money; Windows 7 isn’t cheap.

@HungryGuy For personal use, I would recommend LibreOffice, a fork of/from OpenOffice, and pretty much the same thing. Long story short, the people who wrote OO didn’t like what Oracle may do to OO, so they made LO. However, the commands and interface are different enough from Word that OO/LO may not be the best thing unless the OP is willing/able to “translate” certain things.

Try winebottler or, indeed, OpenOffice.org and TDF’s LibreOffice are great.