1. financial instruments such as stocks, bonds, or other investment certificates that represent ownership or debt
Usage: finance; business
2. measures taken to protect against danger, theft, or other threats; safety precautions

Examples

• The investment firm manages a diverse portfolio of securities.
• Government securities are considered low-risk investments.
• She works as a securities analyst on Wall Street.
• The building has enhanced securities after the break-in.
• Airport securities have been tightened following recent threats.
• The company’s securities are traded on the stock exchange.
• Additional securities were installed around the perimeter.