1. to think deeply about fundamental questions of existence, knowledge, or ethics
Usage: British spelling
2. to express philosophical ideas or theories, often in a lengthy or abstract way
Usage: British spelling

Examples

• She would often philosophise about the meaning of life during long walks.
• The professor began to philosophise about human nature and morality.
• He tends to philosophise rather than take practical action.
• They spent hours philosophising about justice and freedom.
• Don’t philosophise about it—just make a decision.
• The ancient Greeks were among the first to philosophise systematically.
• She philosophised that happiness comes from within.