wall (walls plural )
1 n-count A wall is one of the vertical sides of a building or room.
Kathryn leaned against the wall of the church..., The bedroom walls would be painted light blue..., She checked the wall clock.
♦
-walled comb in adj
...a glass-walled elevator...
2 n-count A wall is a long narrow vertical structure made of stone or brick that surrounds or divides an area of land.
He sat on the wall in the sun...
3 n-count The wall of something that is hollow is its side.
with supp
He ran his fingers along the inside walls of the box.
4 n-count A wall of something is a large amount of it forming a high vertical barrier.
with supp, usu N of n
She gazed at the wall of books..., I was just hit by a wall of water.
5 n-count You can describe something as a wall of a particular kind when it acts as a barrier and prevents people from understanding something.
with supp, usu N of n
The police say they met the usual wall of silence...
6
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cavity wall
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dry-stone wall
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fly-on-the-wall
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hole-in-the-wall
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off-the-wall
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retaining wall
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sea wall
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stonewall
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wall-to-wall
7 If you say that you are banging your head against a wall, you are emphasizing that you are frustrated because someone is stopping you from making progress in something.
INFORMAL
♦
to bang your head against a wall phrase V inflects, usu cont (emphasis)
I appealed for help but felt I was always banging my head against a wall..., I wondered if I was banging my head against a brick wall.
8 If you have your back to the wall, you are in a very difficult situation and can see no way out of it.
INFORMAL
♦
have/with your back to the wall phrase back inflects
Their threat to hire replacement workers has the union with its back to the wall.
9 If you say that something or someone is driving you up the wall, you are emphasizing that they annoy and irritate you.
INFORMAL
♦
drive someone up the wall phrase V inflects (emphasis)
The heat is driving me up the wall..., I sang in the bath and drove my parents up the wall.
10 If a person or company goes to the wall, they lose all their money and their business fails.
INFORMAL
♦
go to the wall phrase V inflects
Even quite big companies are going to the wall these days.
11
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fly on the wall
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fly
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the writing is on the wall
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writing wall in phrasal verb If someone or something is walled in, they are surrounded or enclosed by a wall or barrier.
usu passive
He is walled in by a mountain of papers in his cluttered Broadway office. be V-ed P