1. Material or substance used to fill in a gap, hole, or empty space
2. In construction, the material or structure that fills the space between the main structural elements of a building
Usage: technical

1. To fill in or complete a gap, hole, or empty space
2. To develop or build on vacant land within an urban area
Usage: urban planning

Examples

• The contractor used recycled plastic as infills for the garden beds.
• Concrete infills were poured between the steel beams to complete the structure.
• She infills the cracks in the wall with spackling compound.
• The city plans to infill several vacant lots with affordable housing.
• The infills in the brick wall help insulate the building.
• He infills the survey form with his personal information.