Hello Kiko, Catalogation is not an option. I think there could be be a few possibilities depending on the context. I agree with Suzi, I would say cataloging, but an example in Spanish would be more useful. Depending on context, you could also see variations like listing, categorizing, classification, documenting. I normally use linguee.es or spanishdict.com to find examples of usage. They pull examples of usage from translations on the web which can be very helpful. Resources with translated examples: 1. https://www.linguee.es/espanol-ingles/traduccion/catalogaci%C3%B3n.html 2. http://www.spanishdict.com/translate/catalogaci%C3%B3n

This word mean "making list of something"

In most cases, you would just use the word "cataloging." For example: "She spent many weeks cataloging the collection of documents." Can you give an example of how you wanted to use this word? It might help to answer your question.