The word "SIEN" is spelled with four letters: S-I-E-N. The IPA phonetic transcription of this word is /siːn/. The letter "S" represents the voiceless alveolar sibilant sound, while the letter "I" stands for the long vowel /iː/. The letter "E" is pronounced as the short vowel /ɛ/, and the letter "N" represents the voiced alveolar nasal sound. This word may be unfamiliar to some, but it is a Dutch verb that means "to see."