Spanish words

Tonight while John was reading a book, he stopped and said "Do you want to hear a Spanish word I say a lot?" We couldn't say no to that. So then he said "Elefante!" (For those who don't know, elefante is Spanish for elephant).  Daddy and I giggled. Then John said "Wanna hear another one?"  We say "Yes!"  And he says "Equis!" We asked John "what does that mean?"  He said "I don't know. I think it's a letter!"  He may not remember anything but he is definitely learning a lot in Spanish class. Also, Equis is Spanish for the letter X.