Meaning of paper-thick | Babel Free

Definitions

1. Very thick.
   idiomatic, uncommon
2. Difficult to slice or separate.
   idiomatic, uncommon

Examples

“To make⟳ a key of a chamber-door, which to your sight hath its wards and rose-pipe but paper-thick, and yet at pleasure, in a minute of an hour, shall become⟳ a perfect pistol, capable to shoot⟳ through a breast-plate commonly of carbine-proof, with prime, powder, and firelock, undiscoverable to a stranger's hand.”

CEFR level