In this extreme examplethe c5 pawn is defended three times, though white can take the pawn with an advantage.
[FEN "2r1k3/2r5/2q5/2p5/8/8/PPR5/KN4B1 w - - 0 1"]
What about if the defender is a higher value piece than the attackers, even though it's defended and attacked twice? Clearly, White can take the pawn with an advantage.
[FEN "8/8/3k4/2p2q2/8/8/PPR5/KN4B1 w - - 0 1"]
Now it's not hanging:
[FEN "8/8/3k4/2p2r2/8/8/PPR5/KN4B1 w - - 0 1"]
What do you call these type of situations if it's not hanging piece?
This position also has a hanging piece:
[FEN "2b4k/3q2pp/8/5p2/8/2B1N3/PP6/KN4Q1 w - - 0 1"]