the group of people that rules over an area
The government pays workers to clean up litter.

a group of people who live as a community
The government uses taxes to improve society.

money, eg a percentage of a person's income or of the price of goods etc taken by the government to help pay for the running of the state
People pay taxes to the government.

a system of rules
The police make sure people follow the laws.

to put garbage in a place where it shouldn't be
People can pick up the litter.

costing a great deal
Nothing is cheap! Everything is expensive!

to (cause to) become better, of higher quality?etc
Studying will improve you grades.

to come upon or discover suddenly and unexpectedly
She surprised me with a new car.