bolster vs strut

bolster

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

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. 

strut

verb
  • To brace or support (something) by a strut or struts; to hold (something) in place or strengthen by a diagonal, transverse, or upright support. 

  • Of a peacock or other fowl: to stand or walk stiffly, with the tail erect and spread out. 

  • To walk across or on (a stage or other place) haughtily or proudly. 

  • To walk haughtily or proudly with one's head held high. 

  • To be attached diagonally or at a slant; also, to be bent at a sharp angle. 

noun
  • A beam or rod providing support. 

  • An act of strutting (“bracing or supporting (something) by a strut or struts (sense 1); attaching diagonally; bending at a sharp angle”); specifically, deviation (of the spoke of a wheel) from the normal position. 

  • An instrument for adjusting the pleats of a ruff. 

  • A step or walk done stiffly and with the head held high, often due to haughtiness or pride; affected dignity in walking. 

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