ledger vs notebook

ledger

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

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

  • A distributed ledger, a public financial transaction database, typically using a blockchain. 

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

  • A book or other scheme for keeping accounting records. 

  • A collection of accounting entries consisting of credits and debits. 

verb
  • To use (a certain type of bait) in bottom fishing. 

  • To engage in bottom fishing. 

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

notebook

noun
  • A book in which notes or memoranda are written. 

  • A kind of user interface in literate programming, allowing calculations to be interspersed with human-readable comments, diagrams, etc. 

How often have the words ledger and notebook occurred in a corpus of books? (source: Google Ngram Viewer )