The speed that an object moves through the air.
Wind is simply the movement of air. By definition, this movement has velocity (it has speed plus a direction).
An operational definition is a way of defining a physical quantity or quality in terms of an operation performed. An operational definition of wave speed is "The speed at which sound-waves in air transfer vibratory energy characterized by rate (frequency), starting position (phase), and magnitude (amplitude) of vibration."
It is called a definition.
The definition of the speed of light in a vacuum is 300,000,000 meters/sec, or 186,000 miles/sec.
Initial speed is the original, beginning speed of an object.
The word, 'air conditioner' is a noun. The definition of air conditioner is a machine that controls the humidity and temperature of the air.
The definition of atmospheric movement is the movement of air or air masses.
Sound is a vibration, a change in presure. In air that vibration travels at about 700 mph ... it varies with temprature and presure (average) of the air. In water it's almost 4 times as fast.
Quickness, speed
they are fast
"instantaneous speed"
Great speed is faster than normal.