Definitions
1.verbTo frighten or make nervous (especially by startling)."The hunters were spooked when the black cat crossed their path. The movement in the bushes spooked the deer and they ran."
2.verbTo become frightened (by something startling)."The deer spooked at the sound of the dogs."
3.verbTo haunt.
4.adjectiveA little scared; worried by a feeling or event. Describing the unsettling feeling there being another unknown ghostly presence.
5.adjectiveBeing spied upon by security or intelligence services.
6.adjectiveTaken off guard; astonished; surprised.
7.adjectiveDuped into believing a spook.