The word "Hailse" is spelled as /heɪlz/. The sound "ai" is a diphthong, made up of the long "a" sound /eɪ/ and the short "i" sound /ɪ/. The "l" sound is pronounced with the tongue pressed against the alveolar ridge, while the "s" sound is made with the breath passing over the teeth. The combination of these sounds results in the unique pronunciation of "Hailse". The correct spelling ensures that the intended pronunciation is clear and easily understood.