Part of speech:
(Intransitive) To move suddenly, or be excited, on feeling alarm; to start.
To fill or overpower with terror; terrify.
An inclination or tendency of a specified kind:
The definition of frighten is to cause fear or to make someone afraid or anxious.
A supernatural being, such as a ghost
Part or all of this entry has been imported from the 1913 edition of Webster's Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
To strike with sudden fear; alarm.
Anything that appears unexpectedly or in an extraordinary way
(Military slang) An unidentified aircraft, especially as observed as a spot on a radar screen, and often suspected to be hostile. (Also sometimes used as a synonym for bandit - an enemy aircraft)
An image without real existence; phantom; apparition
(Philos.) A mental impression of a real person or thing
A person or thing reborn.
(Archaic) A shadow
A nearby or adjoining region; vicinity:
The ghost of a dead person.
An agent is defined as someone or something that makes something happen.
A worker, esp. one skilled in industrial work
One who secretly collects information concerning the enemies of a government or group.
(Uncountable) Supernatural beings and events collectively. (When used with definite article: "the supernatural".)
A person who secretly observes others to obtain information
The definition of a creep is the act of moving slowly or is slang for a scary or odd person who is unpleasant or repulsive.
A strange person, event, or thing.
someone unpleasantly strange or eccentric
To warn of approaching danger
Find another word for spook. In this page you can discover 37 synonyms, antonyms, idiomatic expressions, and related words for spook, like: ghost, startle, terrorize, spirit, frighten, disembodied spirit, goblin, bogle, haunt, hobgoblin and phantom.