lurk
//lɜːk//
Verb
lurkInfinitive
lurkPresent tense
lurkedPast tense
lurkedPast participle
lurkingPresent participle
lurksThird-person singular
1
To remain hidden so as to wait in ambush or to observe secretly.
A stranger was lurking in the shadows near the building.
2
To move furtively or be concealed, especially with sinister intent.
A shadowy figure lurked in the alley, watching the house.
3
(Internet) To read messages or content in an online forum or chat without actively participating.
I've been lurking in this forum for months before I finally decided to post.