Set-back in a sentence as a noun

And that could be a huge set-back for some.

If built with high-rises with generous street set-backs, 50,000 people per square mile is very easy to achieve without feeling cramped.

That's because land area is saved by having residential high-rises, which allows very generous set-backs for air and light and broad sidewalks.

Set-back definitions

noun

structure where a wall or building narrows abruptly

See also: setoff offset