Many a times, we need to look for synonyms of words while writing something to make presentation of the text better. Though MS word or similar word processors have built in Thesaurus facility, but what if, you are writing something online like e-mail or a blog entry and you want to look for synonyms of some word. Then these online synonym look up tools come to your rescue.

Here are three useful synonym finder tools:

1. Encarta Thesaurus:

Encarta Thesaurus is one of the comprehensive synonym finder tool out there. It also provides you with an intuitive dictionary and translation of words to various languages.

2. Synonym.com:

Synonym.com lets you find synonyms of words categorized according to various possible senses of the word. You can also look up antonyms and definitions of the words.

3. Thesaurus.com:

Thesaurus.com is another synonym finder tool that searches various synonym collections to look up synonyms of a word. It is quite useful if you are looking for synonyms from a particular collection like Roget’s Thesaurus etc.

If you know of more similar online tools, you can discuss about them in comments section below.