1.
If you ~ a barrier, you succeed in forcing your way through it.
Protesters tried to ~ a police cordon...
About fifteen inmates broke through onto the roof.
PHRASAL VERB: V P n, V P
2.
If you ~, you achieve success even though there are difficulties and obstacles.
There is still scope for new writers to ~...
I broke through the poverty barrier and it was education that did it.
PHRASAL VERB: V P, V P n
3.
see also breakthrough