The phrase "an ordinary example" is correct and usable in written English.
It can be used when you want to illustrate a common or typical instance of something.
Example: "To clarify the concept, let me provide an ordinary example that many can relate to."
Alternatives: "a typical example" or "a common example".
At its worst, "Arabian Nights" is an ordinary example of its special-effects genre.
This is an ordinary example of federal administration of federal law.
More than 3,000 researchers, writers, publishers, and students have signed an open letter calling on the justice ministry to reverse the decision, which they called "not an ordinary example of mindless bureaucratic zeal but a direct blow to the pride, prestige, fame, and future of the country".
Consider what happens in an ordinary example of error: if I think that my keys are on the table, but later discover that they are in my pocket, I do not conclude that my keys never existed as the object of my thought.
In a more ordinary example, Google recently began nudging users to consider a two-step log-in system, combining a password with a code sent to their phones.
As for the opening question about a simple explanation for Bridget's death, there was one observer who saw it as a perfectly ordinary example of premeditated murder.
Donald Trump's tweet insulting Vanity Fair initially seemed like a distressingly ordinary example of the president-elect lashing out when he's displeased by the media.
The cooked section brings us green beans, mint, lemon, camomile and dill; carrots are glazed in ginger, orange, coriander and linseed; while the potato salad is no ordinary example, blending tender new potatoes with black and yellow mustard seeds, capers, pickles, dill, chives and Dijon mustard – there are 15 ingredient altogether, including camomile tea.
"Those ordinary examples of racism that happen every single day," Jarrett said.
She still marvels at the most ordinary examples of life, including the pigeons that regularly stop at her window.
Twenty-first century planning will doubtless protect the monuments to Scott-land, British naval supremacy and feudal power, while ordinary examples of public architecture remain harder to defend.
