B1
an official mark in your passport that allows you to enter or leave a particular country
Dictionary examples:
My visa application was rejected. Apparently, 'because I'm awesome' isn't a valid reason. (0.0)
I tried to use my library card as a visa. The border officer wasn't amused. (0.0)
My visa got lost in a sea of paperwork. Now I'm swimming in bureaucracy! (0.0)
We traveled to Argentina on a tourist visa. (20.6)