The spelling of the name "Lannie" can be explained using the International Phonetic Alphabet (IPA). The "L" in "Lannie" is pronounced with a voiced alveolar lateral approximant /l/, while the "a" is pronounced with a short vowel /æ/. The "n" is also pronounced with a voiced alveolar nasal /n/. Finally, the ending "ie" is pronounced with a long vowel /i/. Therefore, the complete IPA transcription of the name "Lannie" is /læni/.