The spelling of the word "hupe" can be explained using the International Phonetic Alphabet (IPA). The first sound in "hupe" is a voiceless glottal fricative, [h], followed by a long "u" sound, [u:]. The final sound is a voiceless bilabial stop, [p]. Therefore, the correct spelling of this word is "hupe," not "hoop" or "hup." It's important to use the correct spelling to avoid confusion and ensure clear communication.