What’s the plural of “bison”?
What’s the plural of bison? Let’s not beat around the bison beard hair and cut to the chase on this large land-dwelling mammal, the bison.
- Bison is the same singular and plural; both are just bison.
- Bisons with an “s” is accepted, though it’s less common than bison without the “s”. Some sources say bisons is nonstandard, and to avoid its use.
What are “bison”? Are they the same as buffalo or oxen?
Bison belong to the bovine family, which includes buffaloes and oxen. Bison are the largest land-dwelling mammal in North America, and though related, there are distinct differences between buffalo and bison.
According to Smithsonian’s National Zoo, the differences between bison and buffalo are:
Bison have large humps at their shoulders and bigger heads than buffalo. They also have beards, as well as thick coats which they shed in the spring and early summer.
While both bison and buffalo share the bovidae lineage, they’re not so closely related, and have different geographical roots. The “true” buffalo hail from Africa and Asia, and primarily include the water buffalo and the Cape buffalo. Bison, on the other hand, are indigenous to North America and Europe.
No-change nouns (stubborn nouns)
Some nouns look the same plural and singular, and bison is simply one of those nouns.
This makes it irregular, and explains why the plural of bison is so often mistaken for bisons; which, technically, is not incorrect (apologies for the use of a double negative). Other nouns that work this way are sheep, fish, aircraft, water and the one’s listed below.
| Singular | Plural |
|---|---|
| sheep | sheep |
| moose | moose |
| fish | fish (sometimes fishes) |
| elk | elk |
Like bison, beer, shrimp, and moose all stay the same in both their singular and plural noun forms. This sounds confusing, but in most cases, it’s straightforward to figure out whether the noun referenced is plural or singular.
For example, in the case of bison: bison are a herd animal that travel in groups; similarly, fish, salmon, shrimp, trout, and moose (which are all irregular plural nouns that stay the same in singular and plural) often travel in groups (maybe with the exception of moose.) Though it sounds unnerving that a noun should include no change whatsoever in both plural and singular forms, once you learn the correct use and rules of plural noun forms, it’s less complicated and starts to make sense.
Sentence examples with bison (singular & plural)
| Noun: bison | Example sentences |
|---|---|
| bison (singular) |
A solitary bison grazed near the river under the late afternoon sun. The bison raised its head and snorted, warning the hikers to keep their distance. A wounded bison limped across the prairie toward the sheltering trees. The bull bison lowered its massive horns before charging. |
| bison (plural) |
A herd of bison thundered across the plain, dust rising behind them. The national park is famous for its migrating bison herds every spring. Rangers counted several hundred bison roaming the grasslands. Bison, elk and pronghorn often share these open ranges. |
Origin of the word bison
c. 1600 from the French bison, meaning:
|
“European wild ox.” This was brought down from the Latin, bison “wild ox.” Bison was brought down from the Germanic languages, (see wisand- “aurochs”) and has Proto-Indo-European roots. |
In review: the plural of “bison”
The plural and singular of bison are the same; both are just bison.
Practice: Forms of “Bison”
A herd of ______ roamed the vast plains.
We saw a solitary ______ grazing near the river.
The park is a sanctuary for both elk and ______.
How many ______ are in the enclosure at the zoo?
That ______ is an incredibly powerful animal.
FAQs
Is “bison” singular or plural?
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Is “bisons” acceptable?
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Why is bison plural irregular?
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Are other words like bison?
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How to tell singular/plural “bison”?
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Sources
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Bison facts Smithsonian zoo on bison. Web. 18 Dec. 2023.
Yash, D. "How to Use Bison Plural (Explained, With Examples)." Grammarflex, Sep 21, 2025, https://grammarflex.com/bison-plural/.
