The word "GAMMAG" is spelled with the letter G, followed by the letters A and M repeated twice. The final letter is a hard G sound. The phonetic transcription of this word is /ˈɡæmæɡ/. In this transcription, the first sound is a voiced velar plosive /ɡ/, followed by the short vowel /æ/. The letters MM represent a long nasal /æ/ sound. The final sound is again a voiced velar plosive /ɡ/. Overall, the sound of the word "GAMMAG" is quite distinctive and easy to recognize using its phonetic transcription.