spook
Pronunciation:
/spuːk/noun
Definitions
A ghost or phantom.
Example: The building was haunted by a couple of spooks.
A hobgoblin.
A scare or fright.
Example: The big spider gave me a spook.
A spy.
verb
Definitions
To frighten or make nervous (especially by startling).
Example: The hunters were spooked when the black cat crossed their path. The movement in the bushes spooked the deer and they ran.
To become frightened (by something startling).
Example: The deer spooked at the sound of the dogs.
To haunt.