hurdle

IPA: hˈɝdʌɫ

(athletics, equestrianism) An artificial barrier, variously constructed, over which athletes or horses jump in a race.
(figuratively) An obstacle, real or perceived, physical or abstract.
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.
(UK, historical) A sled or crate on which criminals were drawn to the place of execution.
A surname.
(T-flapping) Misspelling of hurtle. [(countable) An act of colliding with or hitting; a collision.]

Examples of "hurdle" in Sentences

The main hurdle is how to make Hydrogen storage cost effective.
Andrew, the main hurdle is not how to make hydrogen storage cost effective.
JA: The main hurdle is the competition and a shrinking market for short fiction.
Another hurdle is the trouble buyers are having finding financing for vacation homes.
The other hurdle is the change of mental state for what was once a hobby now becomes work.
For the users, the main hurdle is no longer registration but rather it is adding a game to MOG.
Great idea, of course, like Simeon Rex, but the hurdle is the cost to produce a demo (much more an actual pilot).
Raw materials were not an issue, he says: "The real hurdle is how you put together organic compounds into a living system."