look at http://upodn.com, it'll give you the IPA pronunciation of any word, phrase, paragraph you enter into the text box. slant and rant have the same vowel sound /æ/ as aunt... and it has nothing to do with being snobbish, it's about having a sense of humor. you can look up sense of humor at dictionary.com and possibly order one from e-bay or amazon, it might do you some good.

According to the International Phonetic Association (the authority on pronunciation of words and other utterances), in either British or Real (American) English the correct pronunciation of "aunt" is /ænt/ , which sounds like "slant" or "rant." That being said, you probably won't be hanged, put on The Rack, tarred and feathered or drawn and quartered for pronouncing it like "font" or "want", you'll just be wrong. =]