Cool MateFishes vs Species
When to use each in English, with meaning, register, and examples.
Fishes
Top 5,000 (fairly common)
Species
Top 1,000 (very common)B2noun
Most common: Species
| Fishes | Species | |
|---|---|---|
| Pronunciation | 🇬🇧 //ˈfɪʃɪz//🇺🇸 //ˈfɪʃɪz// | 🇬🇧 /["/ˈspiːʃiːz/"]/🇺🇸 /["/ˈspiːʃiːz/"]/ |
| Meaning | Aquatic animals that have gills and fins. | A group of living things that can reproduce together. |
| Example | The aquarium has many rare fishes from around the world. | The tiger is an endangered species due to habitat loss. |
| Register | Neutral | Neutral |
| How common | Top 5,000 (fairly common) | Top 1,000 (very common) |
| CEFR level | - | B2 |
| Part of speech | noun | |
| Collocations | tropical fishes, freshwater fishes, saltwater fishes, native fishes, exotic fishes | living, extinct, common, be found, grow, live, species of, a member of a species |
| Antonyms | fishes, vermin | individual, variety |
| Common mistakes | Using 'fishes' incorrectly to refer to a single species., Confusing 'fishes' with 'fish' when discussing collective terms., Incorrectly using 'fishes' in formal writing where 'fish' is preferred. | 'Species' is both singular and plural, so don't say 'specieses'., Confusing 'species' with 'special' when talking about unique traits., Using 'specie' which is incorrect when referring to types of plants or animals. |
| Usage notes | Use 'fishes' when referring to multiple species of fish. In informal contexts, 'fish' can be used for both singular and plural. | Used in both scientific and everyday contexts. It’s appropriate for discussions about biology, animals, plants, and environmental topics. Avoid using colloquially or in informal settings. |
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Frequently asked questions: Fishes vs Species
What's the difference between Fishes and Species?
Fishes: Aquatic animals that have gills and fins. Species: A group of living things that can reproduce together.
Which is more common: Fishes and Species?
Species is the most common in everyday English.
Can you show an example of each?
Fishes: The aquarium has many rare fishes from around the world. Species: The tiger is an endangered species due to habitat loss.
Can I use Fishes and Species interchangeably?
Not always. Fishes and Species are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.