She spent hours painting the wall a bright shade of blue.
brick wall
Frequency:
45
%
The old building had a beautiful brick wall.
concrete wall
Frequency:
40
%
The backyard was enclosed by a tall concrete wall.
Idiomatic Expressions for blank wall
Phrase: talk to a blank wall
Meaning: to speak to someone who is not listening or not responsive
Usage: I tried to reason with him, but it was like talking to a blank wall.