The Vietnamese word "mộ đạo" translates to "devout" in English. It is used to describe someone who is very dedicated and committed to their religion or spiritual beliefs. A devout person often practices their faith with great sincerity and passion.
While "mộ đạo" primarily refers to religious devotion, it can also be used more broadly to indicate strong passion or commitment to any cause or belief, not just religious ones. However, this usage is less common.