How to Say “Biopsy” in Plural

By Hugh Zachary • Updated October 6, 2026

biopsies

The plural of "biopsy" is biopsies.

When a noun ends in a consonant followed by y, the y changes to i and -es is added: biopsies.

Meaning: the removal of a small piece of tissue for testing (noun)

How does it change in a sentence?

Use a plural verb with biopsies: the biopsies are. The possessive plural adds only an apostrophe: biopsies'.

How do you pronounce it?

biopsy is pronounced /ˈbaɪɑpsi/. The plural ending sounds like /z/.

What mistakes should you avoid?

Change the y to i before adding -es: biopsies. The y stays only when a vowel comes before it, as in days.

Did you know?

The y changes to ies only after a consonant. After a vowel the y stays: days, keys, boys.

Examples in context

The doctor took two biopsies.
Singular: The doctor took one biopsy.
The biopsies came back clear.
Singular: The biopsy came back clear.

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About The Author

Hugh Zachary

Hello, I'm Hugh! My eclectic interests range from studying the finer points of linguistics to cycling, sailing, and zoology. Fascinated by our rich English language, I have made educating others on its nuances my mission. My comprehensive guides on how to use various words in plural form, whether it's ‘aircraft’ or 'crocodile', are just an example! When I'm not crafting guides or studying plurals, you might find me cycling through my local park, sailing the open waters, or observing wildlife in their natural habitats.

Hugh ZacharyHelp make this guide better. Spot a mistake, know another way to say it, or have an example from real life? Share it below.

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