1) Buddhist title 
A sayadaw (ဆရာတော်, IPA; lit. royal teacher and alternatively spelt hsayadaw, sayado, sayāḍo or sayāḍaw) is the senior monk or abbot of a monastery. Some distinguished sayadaws would often be referred to as a sayadawgyi ({my|ဆရာတော်ကြီး}, as a sign of reverence. The terms `sayadaw` and `sayadawgyi` ori...
(Burmese). Venerable teacher; an honorific title and form of address for a senior or eminent bhikkhu.