ochre
A herb beginning with the letter "o" is oregano.
Feline mammal of south America beginning with the letter O is an "ocelot."
Some names beginning with the letter O are:OlafOleanderOliveOliverOllieOmarOpalOpheliaOprahOrvilleOscarOtto
The second 'o' in Google is yellow. Google.
optometrist
oasis
Oman
Ontario
No there is not
One Dutch word beginning with the letter "o" is "onmiddellijk," which means "immediately" in English.
EMOTION is the word.
Oman is a country. It begins with the letter O.