A playwright is someone who writes plays. Playwrights are also known as dramatists. Just as a poet writes poems, a playwright writes plays. If the spelling of playwright looks odd, that's because wright is a word for a craftsperson or someone who builds things (like a shipwright builds ships).
Why is playwright not playwrite?
It might seem as if a person who writes plays should be called a “playwrite” but in fact a playwright is a person who has wrought words into a dramatic form, just as a wheelwright has wrought wheels out of wood and iron.
What does playwright mean?
: a person who writes plays.