Kudos Wiktionary Word of the day APP and WIDGET.

Learn a new word everday by either launching the app or including a widget on your home screen (To add a widget after installing the app tap on an empty part of your background and select 'widgets' then 'Wiktionary')
Tapping the widget will give a full explanation of the word.

Dictionary data taken from wiktionary.com
Parts of the source are taken from or modified versions of that found on the Android Developer Blog.

A complete offline French trainer, with 1000 words divided in 40 categories, over 100 verbs with 9000 conjugations, and a mispelling engine to help you master French writing

Are you studying German and need a little help? Do you find German verbs and articles difficult to retain? Then this program is for you!

Are you studying Spanish and need a little help? Do you find Spanish verbs and articles difficult to retain? Then this program is for you. A complete offline Spanish trainer, with 1000 words divided in 40 categories, over 300 verbs with 32000 conjugations, and a mispelling engine to help you master Spanish writing

Langtolang is a multilingual dictionary.

A large, convenient collection of Latin phrases. Includes English translations as well as literary references. The phrases are organized by first letter for easy navigation. Click on a phrase to see a longer, more detailed description that includes historical and literary references.

★★★ Practice and enjoy learning Chinese! ★★★
✓ Learn and practice Chinese(Mandarin) any time you want.
✓ Most useful daily used Mandarin phrases
✓ Including Pinyin (Roman alphabet for learning Chinese) with English translation
✓ Listen Chinese audio while reading
✓ Practice anytime/anywhere
✓ Easy navigation
✓ Smooth Scroll

www.AppVerx.com

An easy way to learn the basics of the Irish Language (Gaelic/Gaeilge). This app gives you the chance to learn the numbers, days, months, colors, verb basics (present tense), common phrases, question words, Halloween related phrases and Christmas related phrases as *Gaeilge with the Irish spelling, phonetic spelling and audio of the pronunciation.

*Munster Dialect

Make your own dictionaries from your favourite TV series or movie.

Learn Spanish vocabulary with word cards, pronunciation by native Spanish speakers and exercises to test what you have learned.

+ Clear audio recordings of native Spanish speakers.
+ Very easy to use!
+ Works offline! (data rates while in roaming are expensive. No internet connection needed).
+ You can practice anywhere you go
+ Compressed files to ensure fast download anywhere.

Recommended app for tourists and business people visiting Spain.

Letter Challenge is a word puzzle game where the player must discover the
randomly chosen word.

Free dictionary app can translate medical terms from English to Arabic language.

Lingua.ly - learn new vocab
Learn a language while you browse the web.
Study French, English, Spanish, Russian, Arabic, Hebrew and more, as you read articles on your mobile device and tap on words you don’t know. Lingua.ly’s smart dictionary gives you translations for vocabulary you would like to learn. The app creates personalized games and flashcards to help you remember your new vocab. A fun, free and seamless way to learn a language.

Dictionnaire Littré

Improve vocabulary & understanding of world with "Malay Picture Dictionary"

The Merriam-Webster Dictionary is the best-selling language reference covering the core vocabulary of everyday life (75,000 definitions).

FEATURES:
•English audio pronunciations
•Search words by voice
•Look up translations from the home screen
•Learning tools: Word of the day, Flash Cards
•List of similar words
•Translate words from any grammatical form

When every second counts, turn to Quick Medical Diagnosis & Treatment - the ultimate on-call and office companion. This streamlined, alphabetically arranged reference delivers evidence-based diagnosis and treatment information on more than 950 diseases and disorders regularly encountered in hospital and outpatient settings.

Merriam-Webster's Medical Dictionary is a concise guide to the essential language of medicine with more than 39,000 entries.

FEATURES:

•English audio pronunciations
•Search words by voice
•Look up translations from the home screen
•Learning tools: Word of the day, Flash Cards
•List of similar words
•Translate words from any grammatical form

It's a medical Guidance system app to help people and give them necessary information about many types of diseases.

MEGA Crosswords is an ideal application for every fan of such entertainment.