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hardtack
Definition source: English Wiktionary via Wiktextract
Usage: uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: pilot biscuit, sea biscuit, sea bread, ship bread, ship's biscuit, ship biscuit
Antonyms: none provided
very hard unsalted biscuit or bread; a former ship's staple
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: hardtack, pilot biscuit, sea biscuit, ship biscuit
Antonyms: none provided
Broader terms: biscuit
So named because of its original popularity with seafarers (pilots) as a long-lasting staple food.