(capable of) acting, moving etc, taking a short time
speedy
Cases of word usage
1) a kind of animal like a deer, that can run very fast (antelope)
2) at a dangerously fast speed (breakneck)
3) using fast (and often severe) methods to be successful (crash)
4) a fast warship (cruiser)
5) a small, fast warship used for protecting larger ships (destroyer)
6) the quality of being fast (fastness)
7) a kind of fast warship (frigate)
8) a way of talking fast that is difficult to understand (gabble)
9) an animal, similar to a rabbit but with long ears, able to run fast (hare)
10) of, like, of meteors; fast and astonishing (meteoric)
