bậc
noun

(of a ladder) a rung
a stair or step
(by extension) a level; a rank
(arithmetic, of an exponential product, formal) a degree; a power
(arithmetic, of a root) a degree
(algebra, of a monomial, polynomial, equality, equation, function, etc.) a degree; an order

Used for respected people.

bật
verb

(intransitive) to bounce off; to bounce back
(transitive) to snap; to switch on (lights)
(intransitive) to feature prominently
to do something suddenly

tiên sư
noun

(uncommon) the intellectuals of the old days; the "old master"
(honorific) progenitor of a particular craftsmanship

intj

(Northern Vietnam, offensive) used in insults

tù trưởng

tù trưởng
noun

chieftain, tribal chief