The word "senia" is spelled with four letters, and its phonetic transcription in IPA is /sɛniə/. The initial sound "s" is an unvoiced alveolar sibilant, followed by the vowel sound "ɛ", which is a mid-front unrounded vowel. The "n" is pronounced as an alveolar nasal, and the second vowel "i" is a high-front unrounded vowel. Finally, the last sound "ə" is represented as a schwa, which is an unstressed vowel sound. Together, these sounds create the unique spelling and pronunciation of the word "senia."