[ubuntu] editing a spell check dictionary beyond adding new words?

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http://ubuntuforums.org – There are many words that I use in a day that are not in the dictionaries used by spell checkers, but they are either in the dictionary or are found by Google to be correct on a dictionary web site. I also have a sloppy "fist" when it comes to typing. If I add my word to the dictionary and later misspell the word, there are no spell-check suggestions to choose from to get me correctly to my newly-added word. I don't know why it is too, but many times I get numbers added to or inserted in words, and these are not marked as misspelled. For those who deal with serial numbers lik (Hardware)