lock down

1. (transitive)To secure (something).

2. To secure (something).

   (transitive)To blockade and lock (e.g. a building or campus) so as to prevent ingress or egress; to make the occupants (of an area) stay locked indoors for their safety.

   Police have the area locked down until the situation is all-clear.

3. (transitive)To limit the use of (a computer network) to only users with permission.

4. (transitive)To make (an arrangement) secure, definite, or permanent; to fix.

5. (slang, transitive)To cause (another person) to enter into an exclusive romantic relationship.

   It took me some time, but I finally locked her down.

6. (intransitive)To travel through a flight of locks on a waterway in a downhill direction.

1. Mennad was locked down.

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2. Jamin's auburn locks cascade down their shoulders, adding an air of elegance to their appearance.

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3. Police had Dan locked down.

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4. The prime minister decided to lock down Algiers.

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5. Shockingly, there have been at least five attempted escapes from a “red zone” around 10 locked-down Lombardy towns.

   deSchockierenderweise gab es schon mindestens fünf Fluchtversuche aus einer „roten Zone“ um zehn abgesperrte lombardische Städte. — Pfirsichbaeumchen

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irregular

• lock upповісити, вішатиTo imprison or incarcerate (someone).
• lock inприбрати, прибиратиUsed other than figuratively or idiomatically: To secure (someone or something) in a locked enclosure.
• lock awayприбрати, прибиратиTo lock up; to lock in a safe place, out of view.
• lock offTo stop talking to (someone); to cut (someone) out; to ghost (someone).
• lock outTo inadvertently prevent (a person, particularly oneself) from entering a place, by leaving it locked.
• lock onTo begin tracking a target via an automated system.
• lock downTo secure (something).
• lock intoTo firmly commit to (something or someone).