obsess

Definition of Obsess in English :

1. ghost, haunt, obsess

haunt like a ghost; pursue

Example Sentences:
'Fear of illness haunts her'

2. obsess

be preoccupied with something

Example Sentences:
'She is obsessing over her weight'

WordNet Lexical Database for English. Princeton University. 2010.

Obsess

verb

1. (tr; when passive, foll by with or by)

to preoccupy completely; haunt

2. (intr; usually foll by on or over)

to worry neurotically or obsessively; brood

verb transitive

1.

to haunt or trouble in mind, esp. to an abnormal degree; preoccupy greatly

verb intransitive US

2.

to be obsessed or preoccupied

usually with about, over, or on

v. ob·sessed, ob·sess·ing, ob·sess·es

v. tr.

To preoccupy the mind of (someone) excessively.

v. intr.

To have the mind excessively preoccupied with a single emotion or topic: The conference organizer obsessed over the smallest of details.