The word "gobbie" is spelled with two 'b's because it follows the rule of doubling the consonant after a short vowel sound. The vowel in "gobbie" is pronounced as ɒ, the open-mid back rounded vowel. The first 'b' creates the short vowel sound and the second 'b' ensures that the sound is short and crisp. The IPA phonetic transcription for "gobbie" is /ˈɡɒbi/. It is important to use correct spelling and pronunciation when communicating to avoid confusion or misunderstandings.