This word is pronounced as "fo". It means Buddha. It was created when Buddhism was first introduced to China from India about 2500 years ago.
The word Buddha in Sanskrit was translated as 佛陀耶 in Chinese. The Chinese like simplicity, as a result, only the first word "fo" was used to refer to Buddha. Buddha, or Fo, means an enlighten being - A person who understands the true nature of life and the universe.
He has reached supreme perfection both in self-realization and in helping others to attain realization. With his help, we are able to transcend from suffering to happiness. The innumerable Buddhas are not gods to be worshipped but compassionate and wise beings to be respected and emulated.