The phrase "a simple sign of" is correct and usable in written English.
It can be used to indicate that something is an indication or evidence of a particular condition or situation.
Example: "The sudden drop in temperature is a simple sign of the changing seasons."
Alternatives: "a clear indication of" or "a straightforward signal of".
Your excellent article "Once a Simple Sign of Aging, Falls Now Merit Complex Care" (front page, Nov. 8) briefly referred to one of the major causes of falls — vision loss.
Indeed, there is ample evidence that opportunity in the modern U.S. is wildly unequal and that therefore, success is not a simple sign of merit.
The tribunal that upheld the ban concluded that: "In the context of the state of emergency and the recent Islamist attacks that took place, notably in Nice a month ago, the wearing of a distinctive dress, other than the normal bathing suit, could be effectively interpreted, in this context, as not just a simple sign of religiosity".
So one day Mr. Shteyn crossed Kruger Avenue, the street where he lives, and entered an unassuming house with a simple sign reading Sons of Israel.
The fun part: not many onlookers knew they were being entertained by a world-famous violinist, but got clued in with the help of a simple sign held by a member of his street team.
At Dixon, a simple sign suggests the complexity of the challenge: "Teach half as much, twice as well".
For years, only a simple sign indicated the location of what was once the Nazi secret police headquarters in Berlin.
This sounds basic, but farm workers will finally have a simple sign that warns them of potential dangers in the fields they are about to enter; Farm workers will finally receive the same whistleblower protections that every other worker receives.
THE grammar is imperfect, but not the heart behind the gesture, which takes the form of a simple sign.
As a result, the signals can be more easily discriminated by means of a simple sign detector or threshold-based classifier.
There's a picture currently going viral; a simple sign taped to the door of a school in Arkansas.
