The spelling of the word "accumbencies" can be explained using the International Phonetic Alphabet (IPA) as /əˈkʌmbənsiz/. The first syllable "ac-" is pronounced as a schwa sound, followed by the stressed syllable "-cum-" with a short u sound. The ending "-bencies" is pronounced with a clear "b" sound, a schwa sound in between, and the plural "s" with a voiced "z" sound. "Accumbencies" refers to the act of lying down or reclining, and it is a rarely used word in modern English.