The spelling of the word "detainings" is quite straightforward if we break it down phonetically. The first syllable is pronounced "di-". The second syllable is pronounced "teɪn", with a long "a" sound. The third syllable is pronounced "ɪŋz", with a soft "g" sound. The letter "s" at the end of "detainings" indicates pluralization. This word refers to the act of detaining, or keeping someone in custody. It is not commonly used in everyday English, but may appear in formal or legal contexts.