Online. English Phonetics: IPA vs American Heritage Dictionary vs Merriam-Webster. This page gives a comparison table of pronunciation symbols for English, used by IPA, and American Heritage Dictionary (AHD) and Merriam-Webster (MW) Dictionary.
IPA = International Phonetic AlphabetAHD = American Heritage Dictionary, 3rd edition (1992), software version 4.0 (1995).MW = Merriam-Webster Collegiate Dictionary, software version 2.5 (2000) IPA is used by Oxford dictionaries and basically all dictionaries around the world, except American. American dictionaries each cook up a idiosyncratic scheme. www.merriam-webster.com/help/MWOL%20Pronunciation%20Guide.pdf. Online.