The spelling of the word "WALAN" can be explained using the IPA phonetic transcription. In this transcription, "W" represents a voiced labio-velar approximant sound, "A" represents an open front unrounded vowel sound, "L" represents a voiced alveolar lateral approximant sound, "N" represents a voiced dental nasal sound. Therefore, "WALAN" is spelled using these four sounds pronounced in sequence. This word is not commonly used in English, but its spelling can be understood through the use of phonetic transcription.