Probably his most famous work was the Diccionari General de la Llengua Catalana (1932), the first edition of which later became the Institute's official dictionary.
Mbase puna e tij më e famshme ishte en:Diccionari General de la Llengua Catalana (Fjalori Gjeneral i Gjuhës Katalunase) (1932), fjalor ky që më vonë u bë fjalor zyrtar i Insitutit.