The answer to your question is true
Thesaurus is the tool where you can find synonyms for a word, and even antonyms.
Although you can find synonyms in a regular dictionary as well, thesauri are better when it comes to that.
What? ( filling in the 20 characters
Parallel structure means using the same pattern of words to show that two or more words or ideas are of equal importance and to help the reader comprehend what is being written. It is grammatically correct to ensure that phrases, clauses and items on a list after a colon<span> use the correct parallel structure. </span>