Frog has a short 'o'.
The 'o' in "frog" is pronounced as a short vowel(frahg not froag).
The word oatmeal is pronounced with a long o.
Short O
The sound may be a short O, but is usually a caret O, with an AW sound (frawg).
Long
short
short o
The O is a long O as in bone and tone. The E is silent.
The O in 'who' is long, but it isn't a long 'o'. It's a long 'u'.
No, the word "no" is actually pronounced with a long "o" sound. It is pronounced like "noh."
Short o
oxygen is pronounced likeox as in oxenEjun