The spelling of the word "Musad" is pronounced as /muːsæd/. In phonetic transcription, the first sound is "m" followed by a long "oo" sound, "s" and "æ" sound. The last sound is "d". The word Musad is sometimes spelled as "Mossad," a reference to the Israeli Intelligence agency. It is important to note that the correct spelling of a word greatly affects its meaning and context, and therefore, one should take extra care in spelling words accurately.