The spelling of the word "NHEK" can be a bit confusing at first glance. In IPA phonetic transcription, it is pronounced as /næk/. The "NH" sound is a uniquely Vietnamese consonant cluster, which is pronounced as a palatal nasal sound. The "E" letter is used to represent the short /æ/ vowel sound. So, the correct spelling reflects the Vietnamese pronunciation and phoneme transcription, which can differ from English spelling conventions. It is important to understand the proper spelling and pronunciation for accurate communication.