brain — the organ inside the head that controls thought, memory, feelings, and activity
Part of speech: NOUN
Definition: the organ inside the head that controls thought, memory, feelings, and activity
Pronunciation (IPA): /breɪn/
Example Sentences
- My brain feels like it's melting after studying for 10 hours straight!
- Scientists are still trying to understand how the brain works.
- I need to pick your brain about this math problem.
brain
NOUN[/breɪn/]
the organ inside the head that controls thought, memory, feelings, and activity

She studies how the brain stores memories every night in her lab.
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🎤Pronunciation
🌳Etymology
Origin
The word derives from Old English 'brægen', which shares a common Germanic root with related languages. Originally denoting the physical organ, the term later extended metaphorically to signify intelligence and cognitive ability.
Breakdown
Old English 'brægen' evolved phonetically to modern English 'brain' through standard sound changes in Germanic languages, with the root likely connected to Proto-Germanic '*brægno-', meaning the cranial organ.
🎵Rhyme
🔗Collocations
📝Examples
“My brain feels like it's melting after studying for 10 hours straight!”
“Scientists are still trying to understand how the brain works.”
“I need to pick your brain about this math problem.”
“His brain is like a computer - it processes information super fast!”
📚Related Words
Synonyms
Antonyms
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