Package: wordnet

"wordnet" package binaries on CentOS:

/usr/bin/wishwn /usr/bin/wnb /usr/bin/wn

You may install this package on CentOS with yum install wordnet

"wordnet" package binaries on Debian:

/usr/bin/wn /usr/bin/wordnet

You may install this package on Debian with apt-get install wordnet