There are several synonyms that can be used to refer to Samuel Johnson, an English writer, critic, and lexicographer who lived in the 18th century. Some of the most common synonyms for him are Dr. Johnson, Sam Johnson, and Johnson. He is also sometimes called the "Great Cham of Literature" or the "Dictionary Johnson" in reference to his most famous work, A Dictionary of the English Language. Additionally, he is often referred to as a literary giant and a sage of his era, due to his sharp wit, extensive knowledge, and influential literary works.