I'd like to know how do you pronounce the word "Memo", please don't ask me to search it in dictionaries as I have many dictionaries, I just want to know what you say, you can express it in phonetic symbols, thanks.
What's your problem with dictionaries? If a dictionary offers various pronunciations for some word in American English, yes, you need to know which is prominent and where.
memo is straight forward:ˈmɛmoʊ
If you want reliable source for american pronunciations, check Merriam-Webster's Learner's Dictionary
This MW dictionary is better than others.
I think Williamyh's interest is in the variation of pronunciation. He probably hears a word pronounced in a strange way on tv/radio/internet and it sparks an interest.
My pronunciation isn't much different - Scottish English lacks variety of diphthongs compared to English English. - ['mɛmo]