usuario
/uˈswaɾjo/ · B2 · noun · m
user
🧑💻 usuario = usu(ar) 'to use' + -ario, the person who uses
Usuario comes from the verb usar, meaning to use, plus the suffix -ario, which marks a person connected to something, like English -ary or -er. So a usuario is one who uses a service, device, or system.