The American Heritage Publishing Co., highly critical of "Webster's Third", failed in an attempt to buy out Merriam-Webster and determined to create its own dictionary, "The American Heritage Dictionary of the English Language". In 1969, it issued a college-sized dictionary. Now in its fifth edition, it is only slightly greater in vocabulary than the "Collegiate", but it appears much larger and has the appeal of many pictures and other features, such as a usage panel of language professionals which is polled for the acceptability of certain word usage, and a discussion for some entries of subtle differences among words with similar meaning. Other medium-sized dictionaries have since entered the market, including the "New Oxford American" and the "Encarta Webster's", while Merriam-Webster has not attempted to compete by issuing a similar edition.