The spelling of the word "PLQIZ" can be explained using the International Phonetic Alphabet (IPA). The first two letters "PL" represent a consonant cluster where "P" is pronounced as [p] and "L" as [l]. The next vowel "QI" is a diphthong consisting of the sounds [kw] and [i]. The final letter "Z" represents a voiced consonant pronounced as [z]. Therefore, the correct pronunciation of "PLQIZ" would be [plkwɪz]. It is important to use IPA to understand pronunciation and spelling of words accurately.