The correct spelling of the word "GARDIA" is actually "Giardia". The phonetic transcription of this word is /dʒiːˈɑrdiə/. The first sound in the word is a "j" sound, followed by a long "e" sound. The stress is on the second syllable, which is pronounced "ar". The final sound in the word is an "uh" sound. Giardia is a common parasite that can cause diarrhea in animals and humans. It is important to spell it correctly in order to ensure proper diagnosis and treatment.