The spelling of the word "most pent" is determined by the phonetic transcription of the word. In the International Phonetic Alphabet (IPA), the pronunciation of "most" is /moʊst/, while "pent" is /pɛnt/. Therefore, the correct spelling of the compound word "most pent" is determined as such. In terms of meaning, "most pent" describes a feeling of being extremely restrained or inhibited, often due to anxiety or stress. It is commonly used in literature, poetry, and everyday speech as a way to express a sense of tension or unease.