What does YARD mean?

noun

1. a unit of length equal to 3 feet; defined as 91.44 centimeters; originally taken to be the average length of a stride
2. the enclosed land around a house or other building“it was a small house with almost no yard”
3. a tract of land enclosed for particular activities (sometimes paved and usually associated with buildings)“they opened a repair yard on the edge of town”
4. the cardinal number that is the product of 10 and 100
5. a unit of volume (as for sand or gravel)
6. a tract of land where logs are accumulated
7. an area having a network of railway tracks and sidings for storage and maintenance of cars and engines
8. a long horizontal spar tapered at the end and used to support and spread a square sail or lateen