The word "strook a note" is spelled with the same letters as "struck a note", but with a different pronunciation. In IPA phonetic transcription, "struck" is spelled as /strʌk/, while "strook" is spelled as /stroʊk/. The difference is in the vowel sound, with "struck" having a short u sound and "strook" having a long o sound. This demonstrates how minor shifts in pronunciation can lead to different spellings of words, and emphasizes the importance of understanding phonetics in language studies.