[lok-uhp] 
| 1. | a jail, esp. a local one for temporary detention. |
| 2. | the act of locking up or the state of being locked up. |
| 3. | a temporary imprisonment or detention, as of suspects or prisoners. |
| 4. | a stock that has been held by an individual as a long-term investment, or that a brokerage firm is required by a regulation to hold for a certain period of time before it can be sold. |
| 5. | any investment or credit instrument, as a renewed loan, in which capital is tied up for a long time. |
| 6. | Printing.
|
| 7. | Automotive. a sudden stopping of the rotation of a wheel. |
| 8. | British Informal. a rented locker, storage space, or garage. |
| lock·up (lŏk'ŭp') n.
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