A thesaurus would be the best reference source to find several synonyms for the word "sauntered." Thesauruses provide lists of synonyms and related words that can be used as alternatives in writing to avoid repetition.
You could research "walk" in a thesaurus and then use past tense to create synonyms for "walked." You may actually find "walked" in a thesaurus.
thesaurus is the answer!
A thesaurus would be the ideal reference source to find synonyms for the word "angry."
Typically, a thesaurus will have both synonyms and antonyms that you can look for.
A thesaurus is a useful reference source for finding synonyms. It provides a list of words with similar meanings to the word you are looking up.
You could research "walk" in a thesaurus and then use past tense to create synonyms for "walked." You may actually find "walked" in a thesaurus.
telephone book
Synonyms. If you are seeking for a source to study of synonyms : http://www.synonyms.com
Probably a thesaurus, but a dictionary may be some help!
an unabridged dictionary
footnote
A tertiary source provides summarized condensed information for quick reference