Main entry: start, startle, jump
Definition: a sudden involuntary movement
Usage: he awoke with a start
Main entry: startle, galvanise, galvanize
Definition: to stimulate to action
Usage: ..startled him awake; galvanized into action
Main entry: jump, start, startle
Definition: move or jump suddenly, as if in surprise or alarm
Usage: She startled when I walked into the room