It can refer to:
* The Spanish language: "Habla español" means "He/she speaks Spanish."
* A person from Spain: "Soy español" means "I am Spanish."
* Something related to Spain: "Música española" means "Spanish music."
It's important to note that "Español" is masculine in Spanish, so you would use the masculine article "el" before it: "el español" (the Spanish language).