The spelling of the word "Baumar" is derived from the German language, and it is pronounced as ['baʊmɑːr]. The IPA phonetic transcription breaks down the sounds into distinct symbols. The first sound 'b' represents the voiced bilabial stop, followed by 'aʊ', which is a diphthong representing the sound of 'au'. 'm' and 'ɑːr' symbolize the bilabial nasal sound and the vowel sound 'aa', respectively. Understanding the phonetic transcription enhances better pronunciation and comprehension of unfamiliar words.