The spelling of the word "Selbea" can be explained through its phonetic transcription in the International Phonetic Alphabet (IPA). The word is pronounced as /sɛl.bi.ə/. The initial "s" represents the consonant sound /s/, followed by the vowels /ɛ/ and /i/. The second syllable contains the consonant sound /b/ and the vowel /i/. The final syllable consists of the vowel /ə/. Overall, the spelling of "Selbea" reflects its pronunciation in the IPA.