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leaning tower of pisa

The U.S. was propping up an anti-communist dictator in order to keep a communist dictator out of power.

If the hole is large, the wall will need propping to take some of the load from the portion of wall above the hole. This propping needs to be done with materials that can take the load. There are specialist props used in construction.

Get a professional to look at it. A masonry wall, or the part of the building that it is supporting can be lethal if it fails.

He bought a ticket and went in. Then he left through one of the exit doors, propping it open. He entered, armed, through the door he had exited through.