Amigos Spanish Puzzles

"Learn Spanish vocabulary using various word games and puzzles. Fun and easy to use. Words are grouped into categories for easy learning. Amigos Spanish Puzzles also provides a great variety of games and puzzles for a less formal learning environment. Choose from crossword puzzles, word search puzzles and various word games including anagrams, matching words, or match your wits against friends in a fun dice and board game. Limited to 60 words, full version has 2500 words."

Ultralingua

"The Ultralingua, with Thesaurus, is a professional grade unabridged dictionary for use in education, translation, and business. It includes over 300,000 indexed entries, including thousands of technical and colloquial terms, idiomatic expressions. Useful for reading, writing and translating. Version 5.0 adds vastly enhanced databases, stemming (recognition of conjugated and other inflected forms) for most languages, a special mini-mode (to take up less room on the desktop), seamless interaction with other applications, a dictionary widget for Tiger OS users. Features include: automatic verb conjugation, Multilingual interface, PowerSearch mode, with wildcards, customizable: user may add entries, voice synthesis compatibility, drag and drop with other apps, direct interaction with OS X services enable applications via keyboard shortcut, number-to-text converter; and history feature."

Morse Mania

"Morse Mania is a Morse code tutor for the Macintosh. The application provides three main modes of teaching: Learn Characters, Guess a Character, and Copy Groups. In the Learn Characters mode each Morse code character is displayed on the screen as it is being played, this is useful when you're first learning the Morse code alphabet, as it helps you link each sound to the corresponding character. In the Guess a Character mode Morse code characters are played, and you must type the key of the character sent. In the Copy Groups mode random five letter Morse code character groups are sent (and displayed on the screen). You select how many Morse code groups you would like to have sent, and practice by copying the groups down. At the end of the exercise, compare what you copied to what was actually sent."

Vocab

"Learning vocabulary is one of the hardest aspects of a foreign language. Easy and enjoyable to use, Vocab helps you quickly build the vocabulary you want. Whatever language you want to master, Vocab will prove invaluable. Vocab has won praise from language learners and teachers the world over. This powerful program is proving better than its competitors, and infinitely better than plodding through a dictionary." This program costs $18 to register and some features become disabled if it is not registered within 30 days.