Idioms

Dictionaries of Idioms

• Idiom Dictionary. Search for an idiom from over 7,000 idioms current in British, American and Australian English.

• Dictionary of American Idioms. More than 8000 idiomatic words and phrases of American English online.

• Answers.com's Idiom Pages. Where you can find almost any idioms you are looking for.

• Dictionary of English Idioms & Idiomatic Expressions. A list of 1,885 Idioms in alphabetical order.

• Idiom Quest. A searchable database of American English idioms.

Slang

• How to speak English fluently. Understanding the slang native speakers of English use in their daily conversations. New items are added constantly.

• English Daily - Slang. Hundreds of idioms and slang with definitions, examples, etymology.

• Australian Slang. Australian English Glossary from A to Zed.

• Dictionary of Slang. English slang and colloquialisms used in the United Kingdom.

• Commonly Used American Slang. Nineteen pages of slang collected by Charles I. Kelly and Lawrence E. Kelly.

Exercises

• Idioms in Videos. Click on an idiom to see a list of videos that use it.

• English-Zone - Idioms. Categorized Idioms with exercises to practice using them.

• Paint by Idioms Learning idioms by playing games.

• Eye on Idioms. Complete the sentence by selecting the correct idiom from the list.

• Face Idioms. Match the idioms with their definitions.

• Pocket English Idioms. Hundreds of idioms. Click a keyword and get the idiom with an example sentence.

• Self-Study Idiom Quizzes. Including phrasal verbs, and slang, divided into medium and
  difficult levels.

• Proverbs in English. Very commonly-heard proverbs and old sayings, matching
  quizzes, and crossword puzzles.

Business Idioms

• Business Idioms. Choose an idiom and click on it to go directly to the explanation and example.

• American English Business Idioms. A list of idioms commonly used in the American workplace with meanings and examples.

• Ridiculous Business Jargon. Over 350 of the worst phrases used in the business world today.

Idiom Collections

• English Idioms, Sayings, and Slang. Idioms in alphebatical order, each with a definition, and an example sentence.

• Animal Idioms. A few interesting idioms containing animals' names.

• Slang City. Yeah, baby! Check out this cool online guide to American slang, including explanations of popular songs and movies, bad words, pronunciation and more.

• Idioms Site. Hundreds of idioms in alphabetical order. It also tells you where and when the
  idiom originated.

• Dennis Oliver's ESL Idiom Page. You can see a complete list, or meanings and examples.

• Speak, Read, and Write. Hundreds of idioms, slang, phrasal verbs and proverbs with context examples.