TRIT is a four-letter word that stands for "tritium," a radioactive isotope of hydrogen. In phonetic transcription, it is pronounced /trɪt/. The first sound is the "t" sound, pronounced by touching the tip of the tongue to the alveolar ridge. The vowel sound is a short i sound, pronounced with a relaxed tongue in the middle of the mouth. Finally, the "tium" ending is pronounced with a voiced "zh" sound as in "measure" and a schwa sound, which is barely audible.