số căn cước 
identification, ID number [ số ] : (1) amount, number, figure, quantity, size (of clothing), digit, edition; digital; (2) gear (of a car); (3) destiny, fate, lot
[ căn ] : (1) apartment, flat; (2) [CL for houses, apartments, rooms]; (3) cause, origin, root
[ cước ] : (1) fee, charge (for a service); (2) string; (3) foot
Most Common Compounds Set 1:
Most Common Compounds Set 2 :