Now you can translate words quickly by using camera. Camera Translation.U DICTIONARY ANDROID MOBILE PHONE Best Dictionary Google Play’s Best Self-Improvement App & Best App of 2016! U-Dictionary works great Offline too. You can download offline packs for 38 International languages, Collins Advanced Dictionary, WordNet Dictionary and English Sample Sentences. You can use without internet. Also, the installation package is only 17Mb.
provides Online Dictionary & Offline Dictionary in following 38 languages:                                 
U-Dictionary Features:
Odia Dictionary: You can download offline pack for Odia now.
Camera Translation: Translate words quickly by using the offline OCR technology.
Word Lock Screen: Show words you choose on Lock Screen without network by accessing the offline package.
Quick Search on Lock Screen: Search words or sentences on the lock screen, no need to unlock your
Copy to Translate: Copy any word or sentence while browsing, messaging, or reading news, to get meaning instantaneously.
Quick Translate: Get the meaning in the notification bar without opening
Offline Dictionary: 38 Languages and synonyms, antonyms, phrases, cognate words, English sample sentences, Collins Advanced Dictionary and Word Net Dictionary.
Word for Today:Learning a new word every day.
Small Installation Package: Only 17 MB.
14 Display Languages: Now you can read in your native language.
Perfect English Pronunciation: Authentic UK (British) and US (American) accent.
Roman Script: provides Roman script for basic definition to help you pronounce.
Sample Sentences: Collected from famous international news websites such as BBC, NPR, etc.
Speech Recognition: Speak the word and get the meaning.
My Words: Save important words into different folders.

English Articles: Useful Articles to read
Desktop/Mobile Web: www.u-dictionary.com
Articles from Blog: http://udictionaryblog.wordpress.com

Important link- 
Click here to install

Offline Dictionary but is also the best app for language reference, English learning and vocabulary building. the best companion for all your English language needs!