| 1. | a long, often cylindrical, cushion or pillow for a bed, sofa, etc. |
| 2. | anything resembling this in form or in use as a support. |
| 3. | any pillow, cushion, or pad. |
| 4. | Nautical.
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| 5. | Metalworking. an anvillike support for the lower die of a drop forge. |
| 6. | Masonry.
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| 7. | Carpentry. a horizontal timber on a post for lessening the free span of a beam. |
| 8. | a structural member on which one end of a bridge truss rests. |
| 9. | to support with or as with a pillow or cushion. |
| 10. | to add to, support, or uphold (sometimes fol. by up): They bolstered their morale by singing. He bolstered up his claim with new evidence. |
