LibreOffice - Writer - Open-source cross-platform word processor.

AbiWord - AbiWord is a free software word processor.

Microsoft Word - Microsoft Word is a commercial word document processor for Windows.

Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.

Atlantis Word Processor - Atlantis Word Processor enables users to create documents and reports and to publish e-books.

Apache OpenOffice Writer - Open-source word processor of the Apache OpenOffice suite.