plural form of 'edginess'; multiple instances or types of the quality of being edgy.
From 'edginess' (edgy + -ness) with the regular plural suffix '-es', used when the base word ends in 's' or 'ss'.
The plural 'edginesses' is technically correct but sounds awkward because abstract nouns like 'edginess' are rarely pluralized in everyday speech—we say 'different kinds of edginess' instead!
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