Thesaurus
From Wikipedia, a free encyclopedia written in simple English for easy reading.
A thesaurus is a book of synonyms, often including related and contrasting words and antonyms.
For example, by looking up the word "big" in a thesaurus, someone would find a list of other similar words such as "huge" and "massive", and also some words which mean the opposite, like "small" and "tiny".
This short article can be made longer. You can help Wikipedia by adding to it.