This is actually a prefix meaning, second or bi
A millisecond is equal to one thousandth of a second, milli- being the prefix meaning thousandth.
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the prefix for unlike is -un
The prefix meaning foreign is "exo-".
The prefix meaning height is Acro-
prefix
The prefix meaning "billion" is "giga-".
prefix meaning fast
"Neo-" is a prefix meaning modern.
The prefix is fore-. It means before or predict.
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