Do you mean how do you spell the Spanish word for quit.
It means 'to write'.
If you mean "US" as in USA, it is "Estados Unidos". If you mean "US" as in you and me, then the word is "nosotros".
The Spanish word for "spell" (as in letters in a word) is "deletrear" Which translated lyerally means to separate the letters. The word for "spell" (as in time) is "temporada". The word for "spell" (as in hex) is "encanto".
If you are asking how to write "the word" in Spanish, it is "la palabra."
The Spanish word for cat is 'gato'.
If you are asking how the word "spanish" is spelled, it would be Spanish. "How do you spell" in spanish is "¿Cómo se deletrea...?"
There are a couple of ways to say "to spell" (as in to spell a word) in Spanish. Escribirse is one - "to write itself" - "¿Cómo se escribe la palabra?". Deletrear is another: ¿Puede deletrear la palabra?. As a magical spell: encanto, hechizo, encantamiento, embrujar as a period of time: periodo, temporada
The correct way to write that word is quién and it means "who"