Free in a word software for linux

Learn Words project is a tool for teaching words in foreign languages.
Once words and their meanings have been entered, the computer quizzes you and shows how many errors you made.
Main features:
- Dictionary quick searching
- Thumbnail view
Enhancements:
- Learn words from mini dictionary
- Full mini dictionary opening, editing and saving support
- Set tab at saving and doesnt ask filename again + save as... function.
- Minidict edit & save support
- Gnome menu

Twisted Words library provides implementations of a handful of IM protocols, including IRC, MSNP8, OSCAR, TOC, and Jabber.

Twisted Words provides two separate high-level end-user features:

a multiprotocol instant messaging server
a multiprotocol instant messaging client

These are both still in the early stages of development and are not expected to work flawlessly in all configurations, however each is quite usable for a limited set of functionality. A Twisted Words server can be created with just a couple commands:

$ mktap words --irc-port 6667 --pb-port 8787 --passwd password_file --group somegroup
$ twistd -f words.tap

The Twisted Words client is named im and is usable as an IRC client, and possibly an AIM client (depending on the phase of the moon).

Low Level Functionality:

Twisted Words also includes:

Low-level protocol implementations of OSCAR (AIM and ICQ), IRC, MSN, TOC (AIM).
Jabber libraries.

Prototypes of chat server and client frameworks built on top of the protocols.

Wordplay is a game for Unix/GTK+. Wordplay is primarily aimed at Scrabble players looking to improve their anagramming and hooking skills, but can also be played for fun. The dictionary used is the full TWL98 word list (used for tournaments and club play in the U.S. and Canada).

Three types of games are available:

Word Mine: Find all words of a certain length which can be formed from the letters of a larger word. Letters may be repeated only as often as they appear in the given word.
Word Hooks: Find all words which "hook" off a given word: forming a new word by adding a letter to the beginning or end.
Bingos: Find all anagrams of the given (seven or more) letters. In a Scrabble game, playing a word which uses all letters on your rack is a bingo, netting you a 50-point bonus. The bingo puzzles included with wordplay comprise the 500 most statistically likely bingo-able 7-letter and 8-letter combinations, based on the standard Scrabble bag letter distribution.

backword is a Firefox extension that helps people learn English.
Main features:
- Translate an English word into French, German, Spanish, Italian, Japanese, Korean, Traditional or Simplified Chinese when mouse cursor hovers over it.
- With one click, remember all context of the word, such as URL of the page and the paragraph which the word belongs to.
- Get Pronunciation of the word with a flash.
- Write a note for the word.
- Search more explanation of the word with one click.

GNOME Word of the Day is a GNOME applet that displays a new vocabulary word each day.

No one likes to be lost in a sea of unknown words. With GNOME Word of the Day Applet, your vocabulary will evince perennial growth. Its a must when preparing for the SAT or GRE tests and for improving both reading comprehension and writing precision.

GNOME word of the day sits in your notification area as a whole word or as a small icon. You can retrieve words from a selection of online sources.

jsWordsearch is a word search puzzle generator that is playable through your Web browser. You use your own words and have many options to choose from, including size, color, word direction, shape, and more.

GNU Aspell is a Free and Open Source spell checker designed to eventually replace Ispell. The project can either be used as a library or as an independent spell checker.
Its main feature is that it does a superior job of suggesting possible replacements for a misspelled word than just about any other spell checker out there for the English language. Unlike Ispell, Aspell can also easily check documents in UTF-8 without having to use a special dictionary.
Aspell will also do its best to respect the current locale setting. Other advantages over Ispell include support for using multiple dictionaries at once and intelligently handling personal dictionaries when more than one Aspell process is open at once.
Main features:
- Is an actual library that other programs can link to instead of having to use it through a pipe.
- Does a much better job of suggesting possible replacements for a misspelled word than Ispell does or for that matter any other spell checker I have seen. If you know a spell checker that does a better job please let me know.
- Can learn from users misspellings.
- Can easily check documents in UTF-8 without having to use a special dictionary.
- Has support for using multiple dictionaries at once.
- Is multiprocess intelligent. When a personal dictionary (or replacement list) is saved it will now first update the list against the dictionary on disk in case another process modified it.
- Can share the memory used in the main word list between processes.
- A better, more complete word list for the English language. Word lists are provided for American, British, and Canadian spelling. Special care has been taken to only include one spelling for each word in any particular word list. The word list included in Ispell by contrast only included support for American and British and also tends to included multiple spellings for a word which can mask some spelling errors.