The phrase "concrete expression" is correct and usable in written English.
It can be used when referring to a specific, clear, and tangible way of conveying an idea or feeling.
Example: "The artist's work is a concrete expression of her emotions and experiences."
Alternatives: "tangible representation" or "clear manifestation."
Other formulas express phenomena heretofore lacking such concrete expression, such as the much discussed negative autocorrelation at the first seasonal lag quite often observed in differenced seasonally adjusted series.
"I have given them a very concrete expression of interest that covered a multitude of factors," he said, speaking euphemistically.
This focus of Tuesday's itinerary – co-operative, high-skill economic networks – found concrete expression in the structure of the cabinet revealed last night.
He didn't want to give the face any concrete expression, but to make it give a feeling of a sort of universal force.
Giving concrete expression to those pledges, the candidates are among the co-sponsors of a promising piece of legislation introduced on Friday in the Senate.
Palestinian elections present the Bush administration with the best opportunity to give a concrete expression of its declared commitment to pursuing both regional democracy and Palestinian-Israeli peace.
It was in the requirements of war and finance that the claims of the monarchy found most concrete expression.
(FGD 2_Urban) For rural respondents, the more constrained financial circumstances are expressed in quite concrete expressions of QoL.
However, the concrete expressions are yet to be found.
This structure does not determine concrete expressions, however; the variety of expressions it generates is potentially unlimited.
This language can derive general and concrete expressions in the two kinds of hierarchies.
