The ounce abbreviation “Oz” is not a recognised word in Scrabble. It also doesn’t count as a word in the comparable SOWPODS and Words With Friends games.
Ozone, the shortest word starting with the letter “oz,” comprises five letters.
However, a lot of two-letter words that start with “O” or “Z” are acceptable in Scrabble. In reality, it would be OK to swap the letters “O” and “Z” to form the letter “Zo.” This word, which can also be spelt “Dzo,” “Zho,” “Dzho,” or “Dso,” refers to a Tibetan yak.
It is really simple to get high scores in Scrabble with little letters if you know such two-letter words.