A book for keeping notes; a record book, a register.

A book or system used for recording financial transactions, including the use of blockchain technology in cryptocurrencies.

(accounting) A collection of accounting entries consisting of credits and debits.

A large, flat stone, especially one laid over a tomb.

(construction) A board attached to a wall to provide support for attaching other structural elements (such as deck joists or roof rafters) to a building.

(fishing) Short for ledger bait (“fishing bait attached to a floating line fastened to the bank of a pond, stream, etc.”) or ledger line (“fishing line used with ledger bait for bottom fishing; ligger”).

(transitive) To record (something) in, or as if in, a ledger.

(transitive, fishing) To use (a certain type of bait) in bottom fishing.

(intransitive, fishing) To engage in bottom fishing.