| 1. | something, as a chair or bed, that can be folded up and stored away when not in use. |
| 2. | termination or closing: the foldup of the town's newspaper. |
| 3. | a giving in; capitulation: a foldup of management under union pressure. |

| 1. | to bend (cloth, paper, etc.) over upon itself. |
| 2. | to bring into a compact form by bending and laying parts together (often fol. by up): to fold up a map; to fold one's legs under oneself. |
| 3. | to bring (the arms, hands, etc.) together in an intertwined or crossed manner; clasp; cross: He folded his arms on his chest. |
| 4. | to bend or wind (usually fol. by about, round, etc.): to fold one's arms about a person's neck. |
| 5. | to bring (the wings) close to the body, as a bird on alighting. |
| 6. | to enclose; wrap; envelop: to fold something in paper. |
| 7. | to embrace or clasp; enfold: to fold someone in one's arms. |
| 8. | Cards. to place (one's cards) facedown so as to withdraw from the play. |
| 9. | Informal. to bring to an end; close up: The owner decided to fold the business and retire. |
| 10. | to be folded or be capable of folding: The doors fold back. |
| 11. | Cards. to place one's cards facedown so as to withdraw from the play. |
| 12. | Informal. to fail in business; be forced to close: The newspaper folded after 76 years. |
| 13. | Informal. to yield or give in: Dad folded and said we could go after all. |
| 14. | a part that is folded; pleat; layer: folds of cloth. |
| 15. | a crease made by folding: He cut the paper along the fold. |
| 16. | a hollow made by folding: to carry something in the fold of one's dress. |
| 17. | a hollow place in undulating ground: a fold of the mountains. |
| 18. | Geology. a portion of strata that is folded or bent, as an anticline or syncline, or that connects two horizontal or parallel portions of strata of different levels (as a monocline). |
| 19. | Journalism.
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| 20. | a coil of a serpent, string, etc. |
| 21. | the act of folding or doubling over. |
| 22. | Anatomy. a margin or ridge formed by the folding of a membrane or other flat body part; plica. |
| 23. | fold in, Cookery. to mix in or add (an ingredient) by gently turning one part over another: Fold in the egg whites. |
| 24. | fold up, Informal.
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fold
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fold 1 (fōld)
n.
A crease or ridge apparently formed by folding, as of a membrane; a plica.
In the embryo, a transient elevation or reduplication of tissue in the form of a lamina.
fold up
Fail, especially go out of business. For example, Three stores on Main Street have folded up.
Collapse, break down. For example, When she told him about the dog's death, she folded up. This idiom alludes to closing or bringing an object into more compact form. [Early 1900s]