1. past tense of shore: to support or strengthen with a prop or brace
Usage: construction; engineering
2. past tense of shore up: to give support or help to something that is failing or weak
Usage: often used figuratively

Examples

• The workers shored the damaged wall with wooden beams.
• They shored up the foundation before beginning renovations.
• The government shored up the failing bank with emergency funds.
• Heavy timber shored the tunnel entrance during construction.
• The company shored up its finances by cutting expenses.
• Engineers shored the bridge while repairs were made.
• New evidence shored up their argument in court.