1. to remove religious influence or control from something
Usage: British spelling; American spelling is ‘secularize’
2. to transfer property or institutions from religious to civil control
Usage: often used in historical contexts

Examples

• The government decided to secularise the education system.
• Many European countries secularised church lands during the Reformation.
• The new constitution aimed to secularise the legal framework.
• They voted to secularise the hospital that had been run by nuns.
• The revolution led to efforts to secularise all public institutions.
• Critics argued that attempts to secularise society went too far.