Dictionary.com Premium

Dictionary.com Premium is an app, which provides you with more than two million definitions and synonyms. You can search them even offline quickly and efficiently.

There are various features of the app such as the word of the day, audio pronunciation, voice search, slideshows, etc. that helps the user to learn the correct word details. There is also a translator feature that can have your words translated into more than 30 languages.

Pros

Dictionary.com Premium has the word origin feature that tells the background of the words; there is a feature of spelling suggestion; interesting slideshows tell fascinating facts about the language.

Cons

The animation feature may distract some users.