Do you have to cite a thesaurus as a source in an essay?

The purpose of citations is to give credit for other peoples' work. However, some things are considered common knowledge and require no citation. A word from a thesaurus is common knowledge and really isn't intellectual property, so it doesn't need to be cited. Cite things like journal articles, newspaper articles, books, reference books such as encyclopedias and text books, etc. Use the link below to make your citations copy and paste easy.