$ sudo apt-get update
$ sudo apt-get install dico-module-wordnet 

dico-module-wordnet is installed in your system.

Make ensure the dico-module-wordnet package were installed using the commands given below,

$ sudo dpkg-query -l | grep dico-module-wordnet *

You will get with dico-module-wordnet package name, version, architecture and description in a table

dico-module-wordnet package basic information: