A reference tool is a tool or resource that helps you find information or answers to questions. It could be a book, website, dictionary, or any other source that you can refer to when you need quick and reliable information. Full definition
This is a great reference tool for students that you don't want to miss! (tes.com)
They can be used as reference tool before drafting a cover letter in this profile. (bestcoverletters.com)
This makes a great reference tool for not only state legislators, but the broader education community on matters ranging from pre-K and early learning to postsecondary education. (floridacollegeaccess.org)