* Formal: "The wealthy businessman disowned his son after he was convicted of embezzlement."
* Informal: "My grandmother disowned my uncle after he refused to help her with her finances."
* Emotional: "She felt utterly lost and alone after her parents disowned her for marrying outside of their religion."
* Figurative: "The artist disowned his early work, refusing to acknowledge its existence."
Let me know if you would like more examples or have a specific context in mind.