Context because if the joke doesn't relate to anything happening at that time or the past, then no one will get it.
An object with three dimensions(such as height, width and depth) like any object in the real world. Example: your body is three-dimensional.
Anne wrote diary while hiding from the Nazis in an Amsterdam warehouse. She was just 13 when she and her family went into hiding. For two years the Franks lived in a secret annex at the back Mr Frank's business premises on Prinsengracht Street. Their living space was hidden by a movable bookshelf.
