hover, vibrate, vacillate, oscillate -- (be undecided about something; waver between conflicting positions or courses of action; "He oscillates between accepting the new position and retirement")
hover, linger -- (move to and fro; "The shy student lingered in the corner")
hover -- (hang in the air; fly or be suspended above)
levitate, hover -- (be suspended in the air, as if in defiance of gravity; "The guru claimed that he could levitate")
brood, hover, loom, bulk large -- (hang over, as of something threatening, dark, or menacing; "The terrible vision brooded over her all day long")
(Sound)
