Buddha == 佛
Means "the Enlightened One" or "the Awakened One".
Pratyeka-Buddha == 辟支佛
the second stage in Hinayana, the first or initial being that of Sravaka. He is enlightened to the conditions, i.e. the Law of Dependent Origination. He seeks enlightenment for himself and understands deeply Nidanas. He attains his enlightenment alone, independently, or a teacher, and with the object of attaining Nirvana and his own salvation rather than that of others.
Burning Lamp Buddha == 燃灯佛
He was the Buddha that bestowed a prediction of Buddhahood on Shakyamuni Buddha. He was the one who gave Shakyamuni a name, saying "In the future, you will become a Buddha named Shakyamuni."
Bhaisajyaguru == 药师佛
Sanskrit word, the Buddha of Medicine, who quells all diseases and lengthens life. His is the Buddha in the Pure Land of the Paradise of the East.
One Buddha Vehicle == 一佛乘
Also known as Supreme Vehicle. In Buddhism, the Five Vehicles are established to facilitate us to understand the reality of Buddhahood. The teachings of One Buddha Vehicle is the ultimate, perfect and complete truth of Buddha, which is unconceivable and beyond words, as stated in the Lotus Sutra.
Amitabha == 阿弥陀佛
Sanskrit word, literally means boundless light and boundless life. He is the Buddha in the Land of Ultimate Bliss (Pure Land), in which all beings enjoy unbounded happiness. Amitabha has forty-eight great vows to establish and adorn his Pure Land. People also recite or call upon his name by the time of dying will be born in the Land of Ultimate Bliss with the reception by Amitabha. Amitabha is one of the most popular and well-known Buddha in China.