バラスト

Frequency rank: 21,086. – 21,179.

noun (common) (futsuumeishi)

This meaning refers to a heavy substance used in the construction of ships and boats to lower the center of gravity and enhance stability in water.

Heavy materials were loaded into the bottom of the ship to improve its stability.

This usage pertains to the material laid beneath the tracks of railways or roads to provide a stable and even foundation.

The ballast on the railway plays a crucial role in supporting the weight of the trains.