lock up

Meaning: to lock the doors and windows of a building or a car to make it secure

Synonym: secure

For example:

  • lock up sth Don't forget to lock up the office when you leave tonight, Charles.

  • lock sth up My car wouldn't have been stolen if I had locked it up properly.

Quick Quiz:

If you are going out for lunch, make sure you lock up

a. the key

b. the office

c. the security guard

Phrasal verbs grammar

1000 Phrasal Verbs in Context ebook

Phrasal Verb of the Day

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Contributor: Matt Errey