The word "doonan" is a surname that follows the English language spelling rules. The IPA phonetic transcription of "doonan" is /ˈduːnən/, which signifies the vowel sound "oo" as in "food" followed by the sound of "n". It is a five-letter word that is spelled using four phonemes, and it does not follow any irregular spelling patterns. The spelling of "doonan" is straightforward and easy to remember for native English speakers who are familiar with the language's spelling conventions.