swiftness
nounUK /ˈswɪftnəs/
US /ˈswɪftnəs/
Swiftness is how fast something moves or happens.
The swiftness of the cheetah amazed everyone at the zoo.
OTHER MEANINGS
2. The quality of happening without delay.
The swiftness of the rescue saved the hikers from the storm.
3. The ability to think or react quickly.
Her swiftness of mind helped her solve the puzzle first.
4. A fast pace of movement in a race or journey.
The swiftness of the river carried the boat downstream in minutes.