Microsoft Word is a part of Microsoft Office software..
contains many softwares like MS word, Outlook,Excel,Powerpoint etc
Now, MS Office is a PAID software, you need to pay for the whole
software to use it.
However you can use openoffice software which is FREE alternative to MS
office suite. Openoffice has it's own word, excel ,powerpoint files and
it FREE TO USE.
Please click on the above link to download openoffice.
Good Luck :)
I have provided you a free of charge solution to your problem, please rate me accordingly.