Chambers/Martins Fontes Student s Dictionary gives lower intermediate learners of English the help they need, without overwhelming them with unnecessary information or too many details. Over 20 000 words and phrases and 23 000 examples of current English, supported by the British National Corpus. Over 1 000 usage notes help students avoid common errors, and give oppos. Clear illustrations aid explanations, and help show the difference between words that can easily be confused.