The spelling of the word "Delao" can be explained using IPA phonetic transcription. The first sound is /d/, which is produced by pressing the tongue against the alveolar ridge. This is followed by /ɛ/ which is produced by opening the mouth slightly and positioning the tongue towards the front of the mouth. The next sound is /l/, produced by placing the tongue on the alveolar ridge and letting air pass through. The final sound is /aʊ/, which is a diphthong made up of a vowel sound /a/ and a glide /ʊ/.