noun
kilometer
A metric unit of distance equal to one thousand meters.
The trail stretches for one kilometer along the river.
Etymology
The metric name combines the thousand prefix with metre. It defines the distance by a fixed multiple of the basic unit rather than a separate traditional measure.
More examples
- We walk two kilometers to school each morning.
- The next gas station is ten kilometers away.
- She sprints through the final kilometer of the race.
Forms
kilometer · kilometers