Plural of 'deafness'; multiple instances or types of hearing loss or inability to hear.
From 'deaf' + '-ness' (forming abstract nouns) + '-es' (plural). The plural 'deafnesses' allows discussion of different forms or degrees of hearing impairment.
Using the plural 'deafnesses' is rare but powerful—it acknowledges that 'deafness' isn't one condition but many, ranging from partial hearing loss to complete inability to hear.
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