Meaning of brick wall | Babel Free

Definitions

1. Used other than figuratively or idiomatically: see brick, wall. A wall made of bricks.
2. An obstacle.
   figuratively
3. A type of anti-aliasing filter with a steep cutoff.
4. Someone who is silent or unresponsive.
   figuratively

Equivalents

Examples

“The investigators came up against a brick wall in their search⟳ for the missing money when they discovered it had been transferred overseas.”

“They all ran up against the brick wall of high cost⟳ until the cryogenic option was proven feasible in 1973.”

“One of the first problems with the digital audio process⟳ is the use⟳ of brick wall filters with very steep slopes for anti-aliasing and anti-imaging purposes.”

“To reconstruct the sampled signal, an ideal brick wall filter is demanded to remove⟳ the output of band signal.”

“For example, a first order⟳ filter can be converted to a brick wall filter by multiplying by the brick wall factor 1.57.”

“When mama says she doesn't talk⟳, she means it. She's a brick wall.”

“"Does he talk⟳ much? I mean⟳, does he initiate conversation?" "No. He's a brick wall," I said.”

“Having uttered these benign assurances, Mr Burner III became a brick wall.”

CEFR level