Openoffice Writer - free
Open Office: https://www.openoffice.org/
Libre Office: https://www.libreoffice.org/
Open Office... or Libre Office. Two closely related, capable programs. Check ‘em out.
Any OpenOffice document can be used by the expensive Microsoft Office set.
Good Answer!
“Openoffice Writer - free”
I’m doing LibreOffice on Linux (I think just a branch of OpenOffice). I write books and self publish, so it is quite a risk moving from Word. Libre is a little quirky, but so far so good though. The big question is whether the index will work and how to format the tabel of contents better with multiple tiers.
Take a look at Outlook.com. They have free versions of all Office components.
Open Office Suite. It's free, compatible with MS Office Suite, regularly updated, spell/grammar/thesaurus available in multiple languages. Been using it in my college courses. With two desktops, a laptop and a tablet I couldn't afford Microsoft even with a student discount.