Definitions for "Hurdle"
A movable frame of wattled twigs, osiers, or withes and stakes, or sometimes of iron, used for inclosing land, for folding sheep and cattle, for gates, etc.; also, in fortification, used as revetments, and for other purposes.
To hedge, cover, make, or inclose with hurdles.
A portable rectangular wooden frame, strengthened with wattles, and used at Wharram to strengthen the mill dam. (Beresford, Maurice and Hurst, John. Wharram Percy: Deserted Medieval Village, 137)
Keywords:  obstacle, diver, jump, obstical, gorse
A small or high obstacle which horses jump over.
Timber-framed obstacle interlaced with gorse and birch and measuring a minimum of three foot six inches high.
an obstacle that you are expected to overcome; "the last hurdle before graduation"
In England, a sled or crate on which criminals were formerly drawn to the place of execution.
a sort of a sled
Keywords:  leap, barrier, variously, race, movable
An artificial barrier, variously constructed, over which men or horses leap in a race.
a light movable barrier that competitors must leap over in certain races
a barrier that a runner must overcome to finish his race
Keywords:  succeed, spur, energy, creates
a spur which creates more energy to succeed
an unexpected challenge presented to a leader and his group for which he has not specifically prepared and which requires them to apply specific leadership skills--and sometimes outdoor--skills
a problematic connected component of the overlap graph
a requirement to achieve a certain mark in a specified component of the assessment of a given subject in order to pass the subject overall