The difference between the short vowel “o” and the long vowel “oa” lies in both the vowel sound and its pronunciation: 1. Short vowel “o”: This is a quick, more clipped sound. It is often heard in words like “dog,” “hot,” or “pot.” The vowel sound is a short, quick “ah” sound. 2. Long vowel “oa”: This is a longer vowel sound where the “o” is pronounced like the letter name itself, which sounds like “oh.” It can be heard in words like “boat,” “coat,” or “goat.” The “oa” combination makes the soun