When a government or organization gives money to help pay for something, like food or education.
Subsidizing is usually seen as a good thing because it helps people who need it.
Examples:
The government subsidizes the cost of school lunches for kids.
The company subsidizes the cost of transportation for its employees.
She subsidizes the cost of medicine for people who can't pay for it.
The charity subsidizes the cost of books for the library.
The government subsidizes the cost of food for everyone in the country.
He subsidizes the cost of toys for kids who don't have any.