1. a mark or line made on two surfaces to show how they should be aligned or fitted together
Usage: common in manufacturing, engineering, and assembly

1. to make matching marks on two surfaces to ensure proper alignment during assembly or reassembly
Usage: transitive verb

Examples

• The technician drew a matchmark across the two engine parts before disassembly.
• Always matchmark the wheels before removing them for rotation.
• The factory uses matchmarks to ensure components fit together correctly.
• He carefully matchmarked the shaft and coupling with a paint pen.
• Without proper matchmarks, reassembling the transmission would be difficult.
• The service manual instructed us to matchmark the driveshaft before removal.