The word "immuration" is spelled with two "m's" and one "u." The first syllable is pronounced with a short "i" sound, represented in IPA as /ɪ/. The second syllable is pronounced with a long "u" sound, represented as /juː/. The final syllable is pronounced with a short "a" sound, represented as /ən/. Overall, the word is pronounced as "ih-myoo-ruh-shun" and refers to the act of enclosing or confining someone or something within a wall or prison.