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hardtack

American  
[hahrd-tak] / ˈhɑrdˌtæk /

noun

  1. a hard, saltless biscuit, formerly much used aboard ships and for army rations.


hardtack British  
/ ˈhɑːdˌtæk /

noun

  1. Also called: pilot biscuit.   ship's biscuit.   sea biscuit.  a kind of hard saltless biscuit, formerly eaten esp by sailors as a staple aboard ship

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of hardtack

First recorded in 1830–40; hard + tack 2

Explanation

Hardtack is an old-fashioned type of bread or cracker that sailors used to bring with them during long voyages. The taste and texture of hardtack wasn't popular, but it lasted a long time without spoiling. If you take a close look at the word hardtack, you'll have a clear sense of how sailors felt about having to eat it day after day. The hard part is accurate — it was so dry and tough that it was difficult to bite. Tack once meant "food," but in dialect it was specifically "bad food." Hardtack had many alternate names, including "soda crackers" and "sea biscuits," but also "dog biscuits" and "molar breakers."

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Vocabulary lists containing hardtack

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Cramped inside vessels overladen with precious cargo, crewmembers subsisted on a miserable diet of hardtack, an unleavened bread, and salted meat and fish that routinely spoiled and left many gravely ill.

From Barron's • Apr. 28, 2026

He made a tidy sum selling the government hard, dry bread and biscuits - known as hardtack - for Union soldier rations.

From Washington Times • Aug. 30, 2020

In the first they sample decades old corn chips, century-old Civil War hardtack and then freshen up with 100-year-old tooth powder.

From Los Angeles Times • Mar. 24, 2020

Some sailors use pilot bread — a thick, crackerlike item similar to Colonial-era hardtack, which doesn’t go stale — to settle their stomachs.

From Washington Post • Nov. 1, 2018

All the younger children were able-bodied seamen who, presumably, ate hardtack and bunked before the mast.

From "Cheaper by the Dozen" by Frank B. Gilbreth Jr. and Ernestine Gilbreth Carey

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