❖ American desk dictionaries: Webster’s New World Dictionary , 2nd college Edition ( 1980), and Webster’s Ninth New Collegiate Dictionary ( 1983).
Pocket dictionaries
Desk dictionaries
❖ Desk dictionaries are medium-sized ones containing words ranging from 50,000 to 150,000.
❖ British dictionaries: The Concise Oxford Dictionary, Ninth Edition (1996),Oxford Advanced Learner’s Dictionary, 3rd Edition (1980), Longman Dictionary of Contemporary English, New Edition ( 1987)
Specialized Dictionaries
❖ Special dictionaries concentrate on a particular area of language or knowledge, treating such diverse topics as etymology, synonyms, idioms, pronunciation, usages in language, and computer, engineering, literature and a variety of other subjects. These dictionaries may not be very large in size, yet each contains much more detailed information on the subject than you can find in a general unabridged one.