attachment vs affixation

attachment and affixation both are nouns.

Word	Noun	Adjective	Verb	Adverb
attachment	Yes	No	No	No
affixation	Yes	No	No	No

As nouns, attachment and affixation are synonyms defined as:

attachment (noun)	affixation (noun)
the act of fastening things together	formation of a word by means of an affix
the act of attaching or affixing something	the act of attaching or affixing something
faithful support for a cause or political party or religion	the result of adding an affix to a root word
a supplementary part or accessory
a connection that fastens things together
a writ authorizing the seizure of property that may be needed for the payment of a judgment in a judicial proceeding
a feeling of affection for a person or an institution