Amigo is already a spanish and portuguese word which means "friend".
Amigo
In Spanish, 'to a friend' is 'a un(a) amigo/a' (if that's what the question meant).
Amigo is another word for friend in Spanish."Amigo" is the Spanish word for "friend".
Tu amigo or su amigo
amigo is spanish for friend amigos is spanish for friends
Amigo in Spanish is amico in Italian.
You could use "en casa de un amigo".
"Amigo" is Spanish for "friend".
It is "mejor amigo" in Spanish. If you are speaking of a female, it is "mejor amiga".
Bendiciones mi amigo (assuming it's a guy you're writing to).
"Jajaja amigo" is a phrase in Spanish that translates to "hahaha friend" in English. It is a playful way of expressing amusement or laughter among friends.
In spanish, "best friend" is mejor amigo(a), amigo is for a boy and amiga is for a girl.