Definitions of hurdle:

• noun:   a light movable barrier that competitors must leap over in certain races
• noun:   an obstacle that you are expected to overcome

  Example: "The last hurdle before graduation"

• noun:   the act of jumping over an obstacle
• verb:   jump a hurdle
• name:  A surname (rare: 1 in 100000 families; popularity rank in the U.S.: #7605)