The word "TRUM" is spelled with four letters and pronounced with two syllables. The first syllable "tr" is pronounced with a voiceless alveolar stop followed by an unrounded central vowel. The second syllable "um" is pronounced with a rounded open-mid back vowel and a voiced bilabial nasal. In IPA phonetic transcription, "TRUM" is spelled as /tɹʌm/, with the diacritic marks indicating the specific sounds of each letter. Overall, the spelling of "TRUM" reflects its distinct and precise pronunciation.