This is the 111th most frequent Italian word.
campo
"Campo" in Italian means "field" in English.
Here 'campo' refers to a sports field, specifically a soccer field.
Il campo da calcio era illuminato dalle luci.
The soccer field was lit by the lights.
Here 'campo' refers to a cultivated land or agricultural field.
Abbiamo piantato tante verdure nel campo dietro casa.
We planted many vegetables in the field behind the house.
In this sentence, 'campo' is used metaphorically to describe a domain or area of expertise, specifically medicine.