1. prepared for something difficult or unpleasant
2. supported or strengthened with a brace or braces

1. past tense of brace: to prepare oneself for something difficult
2. past tense of brace: to support or strengthen with a brace

Examples

• She braced herself for the bad news.
• The workers braced the wall with wooden beams.
• He stood with his legs braced apart.
• The team was braced for a tough competition.
• The old building was braced with steel supports.
• She braced against the strong wind.
• The bridge was braced with additional cables.