The spelling of the word "kilday" can be explained using the International Phonetic Alphabet (IPA) as /kɪldeɪ/. This word consists of two syllables with stress on the first syllable. It can be further broken down phonetically as /k/ for the first consonant sound, followed by the vowel sound /ɪl/, then the consonant sound /d/, and ended with the diphthong sound /eɪ/. The correct spelling of this word is crucial for effective communication, especially in written forms.