Casebook and Omnibus

Casebook noun - A book in which detailed written records of a case are kept and which are a source of information for subsequent work.

Omnibus and casebook are semantically related. In some cases you can use "Omnibus" instead a noun "Casebook".

Omnibus noun - A vehicle carrying many passengers; used for public transport.

Casebook and omnibus are semantically related. You can use "Casebook" instead a noun "Omnibus".