A car is a vehicle that is usually meant to carry between two and five people. Some cars can go very fast and are used in races, but most cars are just used by people to get to and from work, shopping or school.

A road is a long, flat, hard place that vehicles like cars and trucks drive on. Roads connect towns and cities to one another. Roads can be thousands of kilometers long, and be made of hard asphalt, concrete, or just dirt.

Spokes are the thin parts of a wheel that connect the center of the wheel to the edges. Not all wheels have spokes, some are solid. Almost all kinds of bicycle wheels have spokes. Spoked wheels are lighter than solid wheels.

Traffic on land can be made up of people on foot, vehicles or even animals. Traffic usually travels along public roads. Different countries and different states within countries have different rules on how traffic should behave on public roads, such as which side of the road to drive on, how fast to travel, and what type of vehicles are allowed on different roads.

A car's trunk, also called a boot in British English, is the space at the back of the car used to carry things like luggage. Older cars used to have an actual trunk at the back, which is why a car's trunk has the name it does.