The phrase "a relevant lesson" is correct and usable in written English.
It can be used when discussing a lesson or teaching that is applicable or significant to a particular situation or context.
Example: "After reviewing the project's outcome, we realized that there was a relevant lesson to be learned about teamwork and communication."
Alternatives: "an important lesson" or "a significant lesson".
Tobie's not a fashion guy — actually few at Nike are — but he did learn a relevant lesson from the experience.
This is a relevant lesson that could have been used to prepare later international conventions and frameworks explicitly targeting vulnerability reduction among the least developed, most hazard-prone, or poorest regions.
The Disney film offered children a relevant lesson in the dangers of stereotyping.
It feels like there is a relevant lesson to this episode, but I'm unsure exactly what it is.
We might not, at first blush, think this is a relevant lesson for us, but if we are honest with ourselves, we are all somewhat enslaved, in that we use our time and energy in ways that we do not fully chose, with our best or wisest selves.
Which brings us back to Beane's A's, who may actually have a more relevant lesson to teach us about baseball's — and America's — economy than that David can defeat Goliath.
This is a very relevant lesson for the new PHNs, who could play a significant role in incentivising and motivating relationships and partnerships between key stakeholders, and thus drive greater integration across the healthcare system overall.
A more relevant lesson for these raw recruits is the extraordinary plummet of LeBron James, the Miami Heat superstar.
In this sense, Governor Cuomo's words from 30 years ago remain an exceedingly relevant lesson in the fine line that politicians often find themselves straddling between piety and proselytizing.
But it is questionable whether there are any relevant lessons for Syria from the Balkans.
He has made 26 recommendations to ensure that any relevant lessons are learned from Japan's experience.
