1. plural of conspirer; people who plan secretly with others to do something illegal or harmful
Usage: always plural form; formal or literary register

Examples

• The conspirers met in secret to plan their overthrow of the government.
• Historians identified the conspirers behind the assassination plot.
• The conspirers were arrested before they could carry out their scheme.
• Several conspirers testified against each other in court.
• The conspirers communicated through coded messages to avoid detection.