| Subject | English | Spanish |
| gen. | Convention between the Kingdom of Belgium, the Federal Republic of Germany, the Kingdom of Spain, the French Republic, the Grand Duchy of Luxembourg, the Kingdom of the Netherlands and the Republic of Austria on the stepping up of cross-border cooperation, particularly in combating terrorism, cross-border crime and illegal migration | Tratado entre el Reino de Bélgica, la República Federal de Alemania, el Reino de España, la República Francesa, el Gran Ducado de Luxemburgo, el Reino de los Países Bajos y la República de Austria relativo a la profundización de la cooperación transfronteriza, en particular en materia de lucha contra el terrorismo, la delincuencia transfronteriza y la migración ilegal |
| gen. | Convention between the Kingdom of Belgium, the Federal Republic of Germany, the Kingdom of Spain, the French Republic, the Grand Duchy of Luxembourg, the Kingdom of the Netherlands and the Republic of Austria on the stepping up of cross-border cooperation, particularly in combating terrorism, cross-border crime and illegal migration | Tratado de Prüm |
| law, immigr. | facilitator of illegal migration | pasador de fronteras |
| law, immigr. | facilitator of illegal migration | pasador |
| immigr. | illegal migration | migración clandestina |
| immigr. | illegal migration | estancia irregular |
| immigr. | illegal migration | migración irregular |
| econ. | illegal migration | migración ilegal |