Definition:
"Air flow" is a noun that describes the movement of air from one place to another. It can refer to how air moves in a room, through a machine, or outside in nature.
In more technical or scientific contexts, "air flow" can refer to measurements of how much air passes through a certain area in a specific amount of time. For example, in engineering, you might discuss the air flow rate in a ventilation system.
While "air flow" typically refers to the movement of air, it can also metaphorically describe how ideas or information spread, though this is less common.
While there aren't specific idioms or phrasal verbs that use "air flow," you might encounter phrases like "go with the flow," which means to accept things as they happen, similar to how air moves naturally.
Understanding "air flow" is important for discussing how air moves in various environments, from our homes to the outdoors.