obstacle
Concise Oxford English Dictionary © 2008 Oxford University Press:
obstacle/ˈɒbstəkl/
▶noun a thing that blocks one's way or hinders progress.
– origin ME: via OFr. from L. obstaculum, from obstare ‘impede’.
'obstacle' also found in these Oxford entries:
barrage balloon
- barrier
- baulk
- block
- bunker
- chicane
- circumvent
- clog
- crash
- cross
- fence
- firebreak
- ha-ha
- hurdle
- intervene
- jump
- kink
- leapfrog
- mini-golf
- negotiate
- obstacle race
- offset
- periscope
- refuse
- shoulder-charge
- snag
- sticking point
- straight-arm
- stride
- stumbling block
- surmount
- through
- water jump
- way
