Onion.
Edamane is a vegetable. It is a bean.
onion
Onion is a vegetable. Oriental radish is a vegetable.
No 5 letter word in the English language starts with the letter O and ends with the letter Z.
Oasis Ouchy
Tango
Orach is a vegetable grown in India. It is eaten like spinach.
veg-o
Other Otter Ottar
There are no 5 letter countries in Asia that begin with the letter "O". The only country in Asia that begins with "O" is Oman.
Lions can be described as overpowering. The word starts with the letter o.
Omelette au fromage is a Swiss dish that starts with the letter O.