A Word Document is a file created using Microsoft Word, a popular word processing software. It allows users to create, edit, and format text documents for various purposes, such as letters, reports, and resumes. The document can include images, tables, and other elements to enhance its presentation. Users can save a Word Document in different formats, including .docx and .pdf, making it easy to share and print. The software also offers features like spell check, grammar suggestions, and templates to help streamline the writing process and improve document quality.