Buddha

(skt.: Buddha; tib.: sangye) The word Buddha usually refers to: 

1. To the Shakyamuni Buddha. Before He attained Enlightenment He was called Prince Siddharta, but after He attained it He was called Shakyamuni Buddha. This happened about 2600 years ago. 

2. The word Buddha can also refer to the State one obtains at the end of the spiritual Path described as Buddha-Dharma or Buddhism.