+A prefix is a string of letters added to the beginning of a [word](/wiki/word). It subtly shifts the original meaning, creating a new one, like "un-" in "unhappy". These small additions are key to [language](/wiki/language) expansion and flexibility.
+## See also
+- [Suffix](/wiki/suffix)
+- [Root](/wiki/root)
+- [Affix](/wiki/affix)
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