A K-1 visa — also called a fiancé visa — allows the engaged partner of a U.S. citizen to enter the United States, as long as the couple gets married no more than 90 days later. The newly married spouse can then apply for permanent residence (a “green card”) based on marriage.

The correct terminology is “fiancée” for a woman who is engaged to be married or fiancé for man. For simplicity, we use “fiancé” to mean either a male or female engaged partner.