ballast.
Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability.
Meaning & usage
Heavy material that is placed in the hold of a ship (or in the gondola of a balloon), to provide stability.
Anything that steadies emotion or the mind.
Coarse gravel or similar material laid to form a bed for roads or railroads, or in making concrete; track ballast.
A material, such as aggregate or precast concrete pavers, which employs its mass and the force of gravity to hold single-ply roof membranes in place.
A material, such as aggregate or precast concrete pavers, which employs its mass and the force of gravity to hold single-ply roof membranes in place. Loose stone or big gravel used to hold rails and tracks in place.
device used for stabilizing current in an electric circuit (e.g. in a tube lamp supply circuit)
That which gives, or helps to maintain, uprightness, steadiness, and security.
Where this word comes from
From Middle English bar (“bare”) + last (“load”).
To stabilize or load a ship with ballast.
To lay ballast on the bed of a railroad track.
To weigh down with a ballast.
Where this word comes from
From Middle English bar (“bare”) + last (“load”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.