Dictionary.com has launched a free iPhone app that lets users look up more than 275,000 definitions and 80,000 synonyms from Dictionary.com and Thesaurus.com. According to Compete, Dictionary.com --part of the Ask.com network-- drew nearly 3.2 million unique visits in March.

The app's features include:

• Access spelled words.
• Alphabetical indexing.
• Synonyms example sentences.
• Non-standard uses.
• Word origin and history.
• Ability to access definitions and synonyms offline.
• Audio pronunciations.
• Dictionary.com's popular Word of the Day.

Compatible with iPhone and iPod touch, this app requires iPhone 2.0 software update. Some features require internet connection.

[via TechCrunch]