lurk

/lɜːk/verb

To hide and wait quietly, often in order to attack by surprise.

Example sentence

“The cat lurked behind the curtain, waiting to pounce on the toy.”

Online it has a milder life: to lurk in a forum is simply to read without posting, with no sinister edge.

Related words

lushSoft and rich; describing soil that is fertile and easy to work.lureA thing that draws people in, usually by promising some pleasure or reward.lusterA soft shine or gleam on a surface.lunchA fairly light meal eaten in the middle of the day, especially when it is not the day's main meal.magnanimousKind and forgiving toward others, especially a defeated rival or someone weaker.luminousGiving off light; glowing brightly.