Meaning : Lie in wait, lie in ambush, behave in a sneaky and secretive manner.
Synonyms : skulk
Meaning : Be about.
Example :
The high school students like to loiter in the Central Square.
Who is this man that is hanging around the department?.
Synonyms : footle, hang around, lallygag, linger, loaf, loiter, lollygag, lounge, mess about, mill about, mill around, tarry