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Using English: Dictionary of English Idioms
Comprehensive collection of over 1,500 English idioms and idiomatic expressions, explained in simple terms. Contains examples from both U.S. and U.K. English.
Quia
Quia: Idioms
Teacher-created matching squares game designed to help students learn 15 common English expressions, or idioms, that use face words, like "play it by ear" or "to be nosy."