1. Heavy matter laid in the hold of a ship, to keep it steady, when there is no cargo; that which is used to make anything steady; the earth or gravel used to fill up the spaces between the rails on a railway.

2. To place ballast in; to keep steady.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• alleast,
• ballat,
• allst,
• ablast,
• ballust,
• balast,
• aleast,
• ballt,
• ballest,
• balst,
• alast,
• llast,
• bellfast,
• ballott,
• ballbat,
• ballastic,
• bleast,
• ballace,
• ballist,
• ballls

• ballistic,
• balistidae,
• balusters,
• ballistics,
• balistes,
• Ballistite,
• Ballista,
• balustrade,
• balistreri,
• ballester,
• baluster.

The adverb form of "ballast" is "ballastically".

The adjective form of the word "ballast" is "ballasted".

The plural of the "ballast" can be the "ballasts".

The singular of the "ballast" can be the "ballast".