Sentence:  In East Asia, the cult of <WSD>Amitābha</WSD> eventually became so widespread that it transcended sectarian distinction, and <WSD>Amitābha</WSD> became the most popular buddha in the region. In Tibet, <WSD>Amitābha</WSD> worship dates to the early propagation of Buddhism in that country in the eighth century, although it never became as prevalent as in East Asia. 
Meaning of the word marked with <WSD> tags:  In (Pure Land Buddhism), a branch of Mahāyāna Buddhism, the name of the principal buddha regarded as of celestial origin.