Nay is an old-fashioned or formal way to say “no.” You might hear it in historical movies when a character declares, “Nay, I shall not surrender!” or in formal voting when members of Congress call out “yea” or “nay” to cast their votes.

The word appears often in older books and poetry. In Shakespeare's plays, characters say things like “Nay, good friend” instead of “No, good friend.” While most people today simply say “no” in everyday conversation, nay still gets used in certain specific contexts: official votes in legislatures, formal debates, or when someone wants to sound deliberately old-fashioned or emphatic.

Nay can also mean “or rather” or “indeed” and is used to strengthen or correct a statement. Someone might say, “He's a good player, nay, a great one,” meaning they're going beyond their first description to emphasize something even stronger. This usage intensifies the original statement rather than contradicting it.