Catalan & Spanish Wordnets
I was part of the team developing the Spanish Wordnet inside the EuroWordNet European funded project during 1996-1999.The original EuroWordNet project dealt with Dutch, Italian, Spanish, German, French, Czech, and Estonian. EuroWordNet is a system of semantic networks for European languages, based on WordNet. Each language develops its own wordnet but they are interconnected with interlingual links stored in the Interlingual Index (ILI).
Spanish and Catalan Wordnets follow the EuroWordNet framework and are structured in the same way as the American wordnet for English (Princeton WordNet) trhough synsets (sets of synonymous words) with basic semantic relations between them.