1
: a stack of hay
2
: a vertical standing wave in turbulent river waters
Examples of haystack in a Sentence
Recent Examples on the Web
These hidden gems are like needles in a haystack, making up just a tiny fraction – less than 5% – of all T cells flowing through our blood.
—
Ethan Stone, USA TODAY, 7 Jan. 2025
The site, called Encore, aggregates items from hundreds of resale websites and helps shoppers find esoteric and unique items—the proverbial needles in the haystack.
—Elissaveta M. Brandon, WIRED, 4 Dec. 2024
Needle in a haystack Finding the tiny needles required a thorough and precise excavation, Pelton said.
—Katie Hunt, CNN, 4 Dec. 2024
Intelligence agencies have always had to find needles in haystacks.
—Amy Zegart, Foreign Affairs, 16 Apr. 2019
See all Example Sentences for haystack 
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Ethan Stone, USA TODAY, 7 Jan. 2025
The site, called Encore, aggregates items from hundreds of resale websites and helps shoppers find esoteric and unique items—the proverbial needles in the haystack.
—Elissaveta M. Brandon, WIRED, 4 Dec. 2024
Needle in a haystack Finding the tiny needles required a thorough and precise excavation, Pelton said.
—Katie Hunt, CNN, 4 Dec. 2024
Intelligence agencies have always had to find needles in haystacks.
—Amy Zegart, Foreign Affairs, 16 Apr. 2019
See all Example Sentences for haystack
Dictionary Entries Near haystack
Cite this Entry
“Haystack.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/haystack. Accessed 20 Jan. 2025.
Copy CitationKids Definition
haystack
noun
hay·stack
-ˌstak 
: a stack of hay
Love words? Need even more definitions?
Merriam-Webster unabridged
Share