したど下取shitadori
1.

The act of returning an old item of similar kind to a seller when purchasing a new item, to receive a discount on the price based on the old item's assessed value.

2.

A method where a buyer exchanges their used goods for a reduction in the cost of a new purchase, typically seen in transactions involving items like vehicles or electronics.

3.

The process by which a customer offers a worn-out product to a retailer as part of the financial arrangement when acquiring a newer model, effectively reducing the purchase price.

Example:

車を下取りに出して新車を買った。

てんかと天下取tenkatori
1.

The act of seizing and holding the ultimate power or authority over a nation or territory, typically characterized by political dominance.

2.

A significant milestone or event marking the transition into a position of supreme leadership, often accompanied by challenges and rivalries.

3.

A person who manages to assert control over a country, claiming a leading position in governance amidst competing factions.