This is a thesaurus of all the glosses to the words in the Glossary, linked to the lines in the texts where these words are found.
The Thesaurus is the opposite of the Glossary. When consulting the Glossary, you know the word and you want to find out what it means. When consulting the Thesaurus, you know the meaning and you want to find out which Shakespearean words express it. How would he say 'arrogant' or 'companion'? The options are listed when you search for these words.
Disclaimer: our Thesaurus is a guide only to the words in the Glossary, and not an account of the way these words might be used elsewhere in the canon, or in Early Modern English as a whole. For example, we include Shakespeare’s use of
mother to mean 'womanish qualities', but not in its ordinary sense of 'parent'. You can read more background about the thesaurus
here.