This type of wall is made to stop danger. It can be on bridges, balconies, or castles to keep people safe.
The castle has a high wall.
The bridge has a safety wall.
Walls like this are built long ago around cities or castles to keep enemies out. They are very strong and tall.
The city had a thick wall for defense.
Soldiers stood on the ancient wall.
In nature, a wall means a tall and steep surface of rock. It is like a vertical face on a mountain or cliff.
The climbers reached the steep wall of rock.
She looked up at the mountain wall.
In biology, a wall is a hard layer around some cells, especially in plants. It helps protect and support the cell.
Plant cells have a cell wall outside.
The wall gives shape to the cell.
On social media, a wall is a place on your profile where you share messages or posts. Friends can see and write there too.
He wrote a message on his friend's wall.
Check my wall for new pictures.
As a verb, to wall means to build a wall around an area or close a part with a wall. It means making a barrier using walls.
They wall the garden to keep animals out.
The workers walled up the old door.
This meaning is figurative. It means a mental or emotional barrier that stops people from sharing thoughts or feelings.
There is a wall between us now.
He built a wall to hide his feelings.
