brains
The plural of "brain" is brains.
Most English nouns form the plural by adding -s, and brain follows this rule.
Meaning: the organ inside the head that controls thinking (noun)
How does it change in a sentence?
Use a plural verb with brains: the brains are. The possessive plural adds only an apostrophe: brains'.
How do you pronounce it?
brain is pronounced /ˈbɹeɪ̯n/. The plural ending sounds like /z/.
What mistakes should you avoid?
Do not use an apostrophe to make a plural. brains means more than one, while an apostrophe shows that something belongs to someone.
Did you know?
- The -s plural goes back to the Old English ending -as, which belonged to only one group of nouns, as in stānas, "stones". By the end of the Middle Ages it had spread to almost every noun.
Examples in context
- The study compared the brains of birds and mammals.Singular: The study compared the brain of birds and mammals.
- She is one of the best brains in the lab.Singular: She is the best brain in the lab.
