Vocabulary

Dictionaries

	eDictionary - Internet Picture Dictionary
	Cambridge Dictionary - Cambridge Advanced Learner's Dictionary
	Dictionary.com - All purpose dictionary
	Thesaurus - Synonyms and antonyms

Collocations

	Just the word - Collocations - Type any word into the seach box to find other words that collocate with this word

Idioms

	Cambridge Org - Cambridge Idiom Dictionary - type in any word to find an idiom using that word
	Using English.com - Popular Idioms with meanings

  Prefixes , Suffixes, Roots, Contexts

	Fact Monster - Prefixes, suffixes and roots
	BBC - Prefixes and suffixes, includes quizzes
	Vocabulary Building using prefixes and suffixes

  Strategies for Building Vocabulary

	Building vocabulary - Several lessons on how to increase vocabulary
	Bangkok Post - Word in context and words by topic
	Guessing Vocabulary in Context 1 - some exercises here Part 2 is here

  Spelling

BBC - Tips on spelling english words

  Exercises

	ManyThings.org - Many vocabulary exercises
	ManyThings.org - many word and grammar exercises and games here from Voice of America
	English Corner -Vocabulary exercises- Synonyms, antonyms & word families; games and crossword puzzles; exercises
	Academic Word Lists - from the Hong Kong Polytechnic; includes Chinese translations; hundreds of academic words here
	The Hong Kong Polytechnic University - Advanced Vocabulary exercises