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To close or lock something

close off

to prevent people from entering a place, using a road etc

close up

to lock the doors of a building or business

lock out

to prevent someone from coming into a room or building by locking the door

lock up

to lock all the doors and windows of a building so that no one can get in



to fasten something such as a door or a container, usually with a key, so that other people cannot open it



to close something, for example a door, window, or drawer



if you close something, or if it closes, it moves to cover an open area



to become fastened with a lock



if something such as a door or window shuts, it closes



if you shut a book or magazine, you close it so that you only see the cover

dark pool

a method of financial trading in which share prices are hidden and not openly available to the public

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bottom gear

the gear that you use for driving a vehicle very slowly

Open Dictionary


to post a tweet, usually a negative one, that mentions a person without using the @ sign, so that they will not see the message on their Twitter feed …

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