What is yes in spanish?

"Yes" in Spanish is "sí". It is used to affirm something or to give a positive answer to a question. In addition to being used independently as a response, it can also be used with other words to create phrases like "sí, por supuesto" (yes, of course) or "sí, gracias" (yes, thank you). "Sí" is the opposite of "no" and is one of the most basic and common words in the Spanish language.