A sound that can be heard, particularly one that is clear enough to be distinguished or understood.

A sudden medical condition caused by the interruption of blood flow to the heart, often resulting in severe pain or collapse.

The part of an engine that covers and protects the rotating components, often found on the front of an aircraft engine.

A type of descent in which an aircraft moves downward without using its engines, often used to conserve fuel.

The irregular or sudden changes in airflow that can cause aircraft to move up and down quickly.

A device that measures the altitude or height of an object in the atmosphere, especially an aircraft.

A tool used for chopping, which has a sharp blade and a heavy head, ideal for cutting wood.

The vertical part at the back of a boat or aircraft that helps it steer.

A device that helps determine the direction you are facing, commonly used in navigation.

A light aircraft designed to fly to remote areas, often equipped with floats for water landings.