What is "thrust" in aviation?

In aviation, "thrust" refers specifically to the forward force that propels an aircraft in the direction it is intended to go. This force is generated by the aircraft's engines, whether they be jet engines or propellers, and is essential for overcoming drag and enabling the aircraft to ascend, cruise, or accelerate. Understanding thrust is crucial for flight attendants, as it relates to the basic principles of flight and safety, influencing various aspects of the flight experience.

The other concepts mentioned in the question serve different functions in the context of aviation dynamics. For example, the force opposing weight is directly associated with lift, which keeps the aircraft in the air. The downward pull of gravity explains the weight of the aircraft and how it interacts with lift. Lastly, drag refers to the resistance an aircraft experiences as it moves through air, countering thrust. These forces work together in a balanced manner during flight, but thrust specifically stands out as the driving force that propels the aircraft forward.