The spelling of the word "smolen" can be explained using the International Phonetic Alphabet (IPA) symbols. The first sound in "smolen" is /s/ which represents the voiceless alveolar sibilant sound. The following sound is /m/, which represents the bilabial nasal consonant. The vowel sound in "smolen" is /oʊ/, which represents the diphthong "oh." Lastly, the final sound in "smolen" is /n/, which represents the alveolar nasal consonant. Therefore, the phonetic transcription of "smolen" is /ˈsmoʊlən/.