Meaning of copperfasten | Babel Free

Definitions

1. To protect the timbers of (a ship) with plates of copper secured with copper nails or bolts.
   historical, transitive
2. To reinforce, strengthen; to make permanent, embed.
   British, Ireland, figuratively, transitive

Examples

“She is copper-fastened and copper-bottomed, and a remarkable fine ship.”

“We had some striking examples of what happens when a guy gets so big for his britches that any pal of his is automatically a copper-fastened genius.”

“This brings to an end a ten-year campaign by Pol O Murchú and other Irish language activists to copperfasten rights to have Irish language legislation made available […]”

CEFR level