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板上钉钉

bǎn shàng dìng dīng

4-character word Traditional 板上釘釘

What 板上钉钉 means

1. that clinches it
2. that's final
3. no two ways about it

The characters in 板上钉钉

• 板bǎnboard; plank; plate
• 上shàng(bound form) up; upper; above; previous; first (of multiple parts); to climb…
• 钉dīngnail; to follow closely; to keep at sb (to do sth)
• 钉dīngnail; to follow closely; to keep at sb (to do sth)