bolster

Short definition from Wiktionary

Noun

1. 1
   A large cushion or pillow, usually cylindrical in shape.
2. 2
   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.
3. 3
   A small spacer located on top of the axle of horse-drawn wagons that gives the front wheels enough clearance to turn.
4. 4
   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.
5. 5
   A beam in the middle of a railway truck, supporting the body of the car.
6. 6
   The perforated plate in a punching machine on which anything rests when being punched.
7. 7
   The part of a knife blade that abuts upon the end of the handle.
8. 8
   The metallic end of a pocketknife handle.
9. 9
   The rolls forming the ends or sides of the Ionic capital.
10. 10
    A block of wood on the carriage of a siege gun, upon which the breech of the gun rests when arranged for transportation.
11. 11
    That which supports or promotes; a catalyst.
12. 12
    A wide-bladed cold chisel designed to split and shape bricks.

Verb

1. 1
   To brace, reinforce, secure, or support.

Proper noun

1. 1
   A surname from German.
2. 2
   A ghost town in Okanogan County, Washington, United States.