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The ownership of the property is in dispute between the siblings.
Example of a contested issue (here, property ownership)
A matter or issue that is being contested or challenged, often legally.
The will's validity is in dispute among the heirs.
Legal challenge example
Often implies a legal or formal challenge.
More broadly, any point of disagreement or contention.
Their opinion on the movie is in dispute.
Informal disagreement example
Can be used in non-legal contexts for any disagreement.
Ensure 'in dispute' is used appropriately for the context: legal/business for formal, any context for informal.
The subject preceding 'in dispute' dictates verb agreement, e.g., 'The issue in dispute is/are...' depends on the subject.
From Old French 'desputer' (to dispute), influenced by Latin 'disputare' (to discuss, dispute).
Formal use is common in legal and business contexts; informal use applies to any disagreement.