The word "fatx" is a non-existent word and is not recognized in any language. However, if we were to use the International Phonetic Alphabet (IPA) to spell it out, it would be pronounced as /fæts/. The 'f' represents the voiceless labiodental fricative sound, the 'a' represents the short vowel sound /æ/, and the 't' represents the voiceless dental stop. The 'x' has no phonetic symbol but is often used to indicate the end of the word or represent a glottal stop.