A stone placed at the threshold of a door or entrance, especially in ancient architecture.

दरवाजे का पत्थर

English Usage: The old castle had a beautifully carved door-stone at its entrance.

Hindi Usage: पुराने किले के दरवाजे पर एक खूबसूरती से नक्काशी किया हुआ दरवाजे का पत्थर था।