1. to run or pass under something
2. to cost less than the budgeted or estimated amount
Usage: business

1. an instance of spending less than the budgeted amount
Usage: business

Examples

• The cable needs to underrun the bridge structure.
• The project managed to underrun its budget by 15%.
• We finished the construction with a significant underrun.
• The department reported an underrun of $50,000 this quarter.
• The tunnel will underrun the entire downtown area.
• Thanks to careful planning, we achieved a budget underrun.