Term Broader Term-Narrower Term Specialisations Generalisation Broader Narrower Related Terms Related Term Synonym Preferred Term Non-Preferred Term Scope Note tren a las nubes Fuente: [RODRÍGUEZ 1989] Rodríguez, Adolfo Enrique (1989) Lexicón de 12.500 voces y locuciones lunfardas, populares, jergales y extranjeras. Suplemento de la revista Mundo Policial, N.60, Buenos Aires