Definition of lock something up also lock up in English:

lock something up (also lock up)

1Shut and secure something, especially a building, by fastening its doors with locks: the diplomatic personnel locked up their building and walked off you could lock up for me when you leave
More example sentences
  • In October 2000, tenants say two employees of the company forced them all to move out of the building by using intimidation tactics like threats, dogs, locking the building up and shutting off electricity.
  • After shutting the door and locking it up, she turned to look at Hope.
  • We had no way of knowing how bad the fire was until we got into the building because obviously it had been locked up since Friday.
1.1 (also lock something away) Invest money in something so that it is not easily accessible: vast sums of money locked up in pension funds
More example sentences
  • This high level of tax relief makes pension vehicles far more attractive investments than most, but the drawback is that all money in the fund is locked away until retirement.
  • As members may be locking their money away for several decades, they may be willing to take a bit more risk to get a better return.
  • Perhaps locking the money away in a non-liquid asset such as property is not the best option.
See parent entry: lock

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Word of the day dinkum
Pronunciation: ˈdɪŋkəm
adjective
(of an article or person) genuine, honest, true