lock upverb/ˌlɒk ˈʌp/

• 1

  To imprison or incarcerate (someone).

  • In 1970, a new era of "getting tough" on young offenders really began to gather momentum with the incoming Conservative government. The number of juveniles locked up each year increased by 500% between 1965 and 1980.
• 2

  To put (something) away in a locked location for safekeeping; (occasionally, chiefly humorously) to sequester (a person) in a similar way.

  • Please lock up all valuables in the safe before leaving.
  • Angus is back in town! Better lock up your daughters, your wife, and your sheep!
• 3

  To close (and often lock) all doors and windows (of a place) securely.

• 4

  To lock (a door, window, etc.).

  • That door still needs to be locked up.
• 5

  computingengineeringmathematicsTo cease responding.

  • When I press this button, the program locks up.
• 6

  computingengineeringmathematicsTo cause (a program) to cease responding or to freeze.

  • If your password contains a particular string of letters, entering it can lock up the login form.
• 7

  engineeringmechanical-engineeringmechanicsTo stop moving; to seize.

• 8

  engineeringmechanical-engineeringmechanicsTo stop moving; to seize.

  • Due to the engines-out condition, the landing was conducted without the brake antiskid and normal breaking^([sic]) systems. Because the emergency brake accumulator only provides for a limited amount of brake applications, full braking was applied and retained at the second touch down, resulting in the main wheels locking up. The tires quickly abraded and deflated at a point between about 300 and 450 feet beyond the second and final touch down.