+An **affix** is a [morpheme](/wiki/morpheme) attached to a [word](/wiki/word) stem to form a new word or a new form of the same word. These linguistic additions subtly modify meaning or grammatical function, shaping the very structure of language.
+## See also
+- [Prefix](/wiki/prefix)
+- [Suffix](/wiki/suffix)
+- [Morphology](/wiki/morphology)
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