lurk-v; 2 Senses

Sense Number 1: Hang around, perhaps secretively, perhaps with the intent to attack or frighten.

Commentary: Syntax Is: NP1[agent] LURK
NOTE: NP1 does not have to be [animate] but must be construed as an agent or actor. See example 4.

High school students like to lurk around in Central Square.
Who is this man lurking around the department?
John lurks in dark corners, hoping to frighten Mary.
The wolves lurked everywhere in the dark, waiting to attack us.

VerbNet: exist-47.1-1
FrameNet: NP
PropBank: lurk.01
WordNet 3.0 Sense Numbers: 1, 2, 3

Sense Number 2: Exist in a present state or a certain position.

Commentary: Syntax Is: NP1[theme] LURK
NOTE: NP1 is often abstract.
NOTE: NP1 cannot be an agent; in example 2 below, for instance, stocks do not move of their own accord.

Fear lurks at the back of my mind.
Stocks lurk in retreat today from previous levels.

VerbNet: NM
FrameNet: NP
PropBank: NM