Wiktionary is my default and only dictionary.


Some of the other languages I use have organizations ruling (ruining?) the vocabulary and produce their own dictionary:

The Académie française produces the French one, available throught the Centre national de ressources textuelles et lexicales:
http://www.cnrtl.fr/definition/academie9/

The Real Academia Española produces the Spanish one:
http://dle.rae.es/

and the Institut d'Estudis Catalans produces the Catalan one:
http://dlc.iec.cat/