hurdle

Short definition from Wiktionary

Noun

1. 1
   An artificial barrier, variously constructed, over which athletes or horses jump in a race.
2. 2
   An obstacle, real or perceived, physical or abstract.
3. 3
   A movable frame of wattled twigs, osiers, or withes and stakes, or sometimes of iron, used for enclosing land, for folding sheep and cattle, for gates, etc.; also, in fortification, used as revetments, and for other purposes.
4. 4
   A sled or crate on which criminals were drawn to the place of execution.
5. 5
   A piece that is jumped over by a hopper piece.
6. 6
   Misspelling of hurtle.

Verb

1. 1
   To jump over something while running.
2. 2
   To compete in the track and field events of hurdles (e.g. high hurdles).
3. 3
   To overcome an obstacle.
4. 4
   To hedge, cover, make, or enclose with hurdles.
5. 5
   To jump over another piece without capturing it.
6. 6
   Misspelling of hurtle.

Proper noun

1. 1
   A surname.