A more thorough explanation:

Definition: Seizin refers to the legal possession of a property or land. It is a term used in property law to describe the right of a person to possess and use a property or land.

For example, if John buys a house, he has seizin of the property, which means he has the legal right to possess and use the property as he wishes.

Another example is if a landlord rents out an apartment to a tenant, the tenant has seizin of the apartment for the duration of the lease, which means they have the legal right to possess and use the apartment during that time.

These examples illustrate how seizin is a legal concept that establishes the right of possession and use of a property or land. It is an important concept in property law as it determines who has the legal right to control and use a property.