n[C]
[Date: 1700-1800; Language: Sanskrit;Origin:'thought, advice', from man 'to think']
a word or sound that is repeated as a prayer or to help people meditate
recite/repeat a mantra
　He closed his eyes and began to recite a Buddhist mantra.
a word or phrase representing a rule or principle which someone often uses, but which other people often find annoying or boring
　The Treasury Secretary has stuck to his mantra that 'a strong dollar is in America's interest'.
a piece of holy writing in the Hindu religion