The spelling of the word "Wiweca" can be explained using the International Phonetic Alphabet (IPA) phonetic transcription. The word consists of four syllables: /wi/, /we/, /ka/, and the stress falls on the second syllable, /we/. The initial /w/ sound is pronounced as a voiced labio-velar approximant, while the vowels are pronounced as /i:/, /e/, and /a/ respectively. Double-checking the correct spelling of unfamiliar words with IPA can help avoid potential confusion and errors.