Sentence examples for lock up from inspiring English sources

"lock up" is a correct and commonly used phrase in written English.
It can be used as a verb phrase, meaning to securely close or fasten something with a lock, or it can also be used as a noun phrase, referring to a secured place or location. Example 1 (verb phrase): Please remember to lock up the house before we leave for vacation. Example 2 (noun phrase): The jewelry store owner said she always feels better when all the expensive items are locked up in the safe at night.