1. to think deeply about fundamental questions of existence, knowledge, or ethics
Usage: British spelling; third person singular present tense
2. to express philosophical ideas or engage in abstract reasoning
Usage: British spelling; third person singular present tense

Examples

• She philosophises about the meaning of life during her morning walks.
• The professor philosophises on ethics in his weekly lectures.
• He philosophises about human nature whenever he reads literature.
• The character philosophises throughout the novel about free will.
• She often philosophises about justice and morality.
• The writer philosophises on the relationship between art and truth.