specialized dictionary, synonym dictionary, synonymity, synonymousness, <span class="searchmatch">thesaurus</span>, treasury of words, unabridged dictionary, unity, vocabulary, wordbook...
This is <span class="searchmatch">Moby</span> <span class="searchmatch">Thesaurus</span> <span class="searchmatch">II</span>, a public domain <span class="searchmatch">thesaurus</span>....