A Pronouncing Dictionary of American English, also referred to as Kenyon and Knott, was first published by the G. & C. Merriam Company in 1944, and written by John Samuel Kenyon and Thomas A. Knott.

It provides a phonemic transcription of General American pronunciations of words, using symbols largely corresponding to those of the IPA.

[1] Edward Artin, who succeeded Kenyon as the pronunciation editor of Webster's Dictionary, sought to revise the pronouncing dictionary many years after the publication of Webster's Third (1961), but to no avail, since none of the publishers Artin approached, including the Merriam company, thought it profitable to publish a new edition of the dictionary.

/r/ has minimal effect on a preceding vowel, compared to some dictionary transcriptions.

Sequences, some only before another vowel, are /ɪr, er, ɛr, ær, ər, ɑr, ɒr, ɔr, ʊr, aɪr, ɪʊr, jʊr/, and in some accents /ʌr, ɜr/.