noun
1 fence/gate
ADJECTIVE
▪ physical
▪ crash , crush ( BrE ), flood , police , protective , safety ( esp. BrE ), security , ticket ( BrE )
▪ concrete
▪ sound ( figurative )
▪
the first plane to break the sound ~
VERB + BARRIER
▪ build , erect , install
▪ jump
▪ break through
▪
The crowd managed to break through the ~s.
PREPOSITION
▪ at a/the ~
▪
Please show your ticket at the ~. ( BrE )
▪ behind a/the ~
▪
The police waited behind the ~s.
▪ through a/the ~
▪
There was a slow trickle of people through the ~s.
2 thing that causes problems
ADJECTIVE
▪ effective , formidable , major
▪ class , colour/color , cultural , institutional , language , racial , trade
▪ invisible
▪ artificial
▪ impenetrable , insurmountable
VERB + BARRIER
▪ build , create , erect , put up , set up
▪
The old laws created ~s to free trade.
▪ break , break down , eliminate , lift , lower , reduce , remove
▪ identify
▪ cross
▪
They believe that music can cross any ~s.
▪ be faced with , encounter , face
▪ overcome , transcend
PREPOSITION
▪ ~ against
▪
The country has set up ~s against imports.
▪ ~ between
▪
a class ~ between the two families
▪ ~ to
▪
a formidable ~ to communication
3 physical object that prevents sb/sth passing
ADJECTIVE
▪ impassable , impenetrable
▪ natural
VERB + BARRIER
▪ form
PREPOSITION
▪ ~ between
▪
The mountains form a natural ~ between the two countries.