obsess

v. be abnormally preoccupied with something, be fixated; worry, annoy

"Obsess", "obsessed", and "obsessive" redirect here. Obsession may refer to:PsychologyMental obsessionObsessive-compulsive disorder, or OCD, a mental disorderObsessive loveSexual obsessionsObsession (Spiritism), a type of psychic disorder supposedly induced by the influence of an evil spiritObsession, Thoughts in consciousness that are often frightening, and difficult to dismiss
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(v. t.)
To besiege; to beset.
  

Verb
1. haunt like a ghost; pursue; "Fear of illness haunts her"
(synonym) haunt, ghost
(hypernym) preoccupy
(derivation) obsession, fixation
2. be preoccupied with something; "She is obsessing over her weight"
(hypernym) worry
(derivation) obsession, fixation

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