The spelling of the word "nimbl" is incorrect as it is missing the letter "e" at the end, making it "nimble". The correct pronunciation of "nimble" is /ˈnɪmbəl/ with the stress on the first syllable. The phonetic transcription using the International Phonetic Alphabet shows that the "b" is silent, and the vowel sounds are short "i" followed by a schwa sound. Using correct spelling and proper pronunciation, we can effectively communicate our thoughts and ideas in written and spoken language.