A thesaurus is a resource that provides synonyms [words that mean the same] for other words.
It is best not to use the very same word over and over in the same paragraph and/or joural entry. As the illustration above suggests,the words “growl,” “snarl,” and “roar” could all be used to say many of the same things.
To find an online thesaurus type http://www.thesaurus.com
In the window, type the word for which you want to find synonyms.
Then click on the magnifying glass; and a list of synonyms for that word will appear
Antonyms are words that mean just the opposite