A prefix is basically an add on to the beginning of a word.
Example: Happy→Unhappy
impossible retreat disagree international sub-ordinate
Hello who are you ?
Prefixes are the words that are added before words to give a new meaning to that word. For example,qualified - disqualified. here "dis" is a prefix
dis like
quarter
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A prefix is a word used at the beginning of a sentence. "Re" is a prefix that means again.
Carbon dioxide
yes- pre- ,pro- ,etc.
yes
Re- (again, back) Un- (not) Dis- (opposite of, apart) Pre- (before) Mis- (wrongly, badly)
No, they have nothing whatsoever to do with prefixes or suffixes. They are simply sounds (of letters) which distinguish one word form another.