Shakespearean nicknames are often used to refer to the characters in William Shakespeare's plays. The most common of these nicknames are 'BARD' and 'KATE'. 'BARD' is a four-letter word that refers to Shakespeare himself, as he was known as the BARD of Avon. 'KATE' is also a four-letter word that is used to refer to the character Katherine from Shakespeare's play The Taming of the Shrew. Both of these nicknames are commonly used when discussing Shakespeare's works.