IPA: /ˌnjʊəroʊˈsɜːrdʒən/
KK: /nʊrˈoʊsɜrʤən/
A medical doctor who performs surgery on the brain and other parts of the nervous system.
The neurosurgeon successfully removed the tumor from the patient's brain.
Neurosurgeon → It is formed from "neuro-" (from Greek "neuron", meaning nerve) and "surgeon" (from Old French "surgien", meaning one who operates). The word "neurosurgeon" refers to a medical professional who operates on nerves or the nervous system.
Think of a 'nerve' ('neuro-') and someone who 'operates' ('surgeon') on it — that's what a neurosurgeon does.
No commonly confused words.