(~s, hurdling, ~d)
1.
A ~ is a problem, difficulty, or part of a process that may prevent you from achieving something.
Two-thirds of candidates fail at this first ~ and are packed off home...
= obstacle
N-COUNT: usu supp N
2.
Hurdles is a race in which people have to jump over a number of obstacles, that are also called ~s. You can use ~s to refer to one or more races.
Davis won the 400m. ~s in a new Olympic time of 49.3 sec.
N-COUNT-COLL
3.
If you ~, you jump over something while you are running.
He crossed the lawn and ~d the short fence...
She learnt to ~ by leaping over bales of hay on her family’s farm.
VERB: V n, V