Two great resources for finding synonyms online are Thesaurus.com and Collins English Thesaurus online. Both sites have interactive features that make finding the right word straightforward. Thesaurus.com has an option to create a free account and writers can store a list of synonyms for future reference.
To access this feature, users need to sign up with Dictionary.com, the parent site that also provides access to Word Dynamo, a word game portal with options to make word lists and share them with others.
Collins English Thesaurus online also gives people the option to sign up for a free account and access their forums and easy to use tools for referencing words.