bolster vs clipboard

bolster

noun
  • The metallic end of a pocketknife handle. 

  • A large cushion or pillow. 

  • A small spacer located on top of the axle of horse-drawn wagons that gives the front wheels enough clearance to turn. 

  • The perforated plate in a punching machine on which anything rests when being punched. 

  • A pad, quilt, or anything used to hinder pressure, support part of the body, or make a bandage sit easy upon a wounded part; a compress. 

  • A block of wood on the carriage of a siege gun, upon which the breech of the gun rests when arranged for transportation. 

  • A short, horizontal structural timber between a post and a beam for enlarging the bearing area of the post and/or reducing the span of the beam. 

  • The rolls forming the ends or sides of the Ionic capital. 

  • A beam in the middle of a railway truck, supporting the body of the car. 

  • The part of a knife blade that abuts upon the end of the handle. 

verb
  • To brace, reinforce, secure, or support. 

clipboard

noun
  • A flat piece of rigid material, such as card or plastic, with a clip at one end under which papers can be held. 

  • A buffer in memory where the user can store data temporarily while transferring it from one place within an application to another or between applications. 

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