Quite a few sailors and spellers ran aground on March 10, 2026, when SHOAL surfaced as the day's Wordle puzzle. With a difficulty rating of 63, it proved tricky enough to send curious players hurrying to search bars to verify whether they were dealing with marine navigation, marine biology, or both.
Meaning
As a noun, shoal does double duty in English thanks to two separate linguistic roots. In oceanography and navigation, it denotes a sandbank or a place where water is shallow (descending from the Old English sceald, meaning shallow). In biology, it refers to a large crowd of fish swimming companionably together, derived from the Old English scolu (a troop or band, which also gave us the word "school"). It can also function as a verb meaning to become shallow.
For example: "The navigator kept a keen eye on the depth sounder, wary of the treacherous shoal lurking just beneath the tide."
Open SHOAL in the Gramma Ana dictionary.
How we measured obscurity
To see how unusual a Wordle solution is, we measure search surges on a shared scale anchored to the term WORDLE itself, rather than using an isolated 0–100 chart where every query's peak artificially maxes out. Before the puzzle dropped, background interest for SHOAL sat at a quiet L ≈ 0. On game day, curiosity leaped to H ≈ 27, yielding an obscurity spike of roughly 2700%. That easily sailed past our historical obscurity gate—the 90th percentile bar of around 600%—confirming that this aquatic five-letter wonder caught many solvers off guard.
Whether you navigated those waters in three guesses or six, I hope your grid stayed afloat. Keep your pencils sharp and your lexicon wide—there is always another delightful word waiting tomorrow morning.
Where it ranks
SHOAL is ranked number 3 on our list of 11 words that we have looked at since March 1, 2026. It falls right between SERIF and BEFIT.
- CAROM — Wordle Apr 10, 2026 (+6800%, H=68) — obscurity post
- SERIF — Wordle Mar 23, 2026 (+4000%, H=40) — obscurity post
- SHOAL — Wordle Mar 10, 2026 (+2700%, H=27) (this post) — obscurity post
- BEFIT — Wordle Mar 26, 2026 (+1500%, H=15) — obscurity post
- AMPLY — Wordle Mar 18, 2026 (+1100%, H=11) — obscurity post
- BROOD — Wordle Mar 24, 2026 (+700%, H=7) — obscurity post
- GUNKY — Wordle Mar 6, 2026 (+600%, H=6) — obscurity post
- SINGE — Wordle Apr 3, 2026 (+500%, H=5) — obscurity post
- AFOOT — Wordle Mar 28, 2026 (+400%, H=4) — obscurity post
- PRUDE — Wordle Apr 11, 2026 (+400%, H=4) — obscurity post
How we measure Wordle “obscurity” (plain English + careful math)
The everyday idea
When a hard Wordle answer drops, people google it. A more obscure answer tends to send more people to the search box, relative to how often that word is usually searched.
We’re trying to measure that “sudden rush of lookups,” then keep a leaderboard of the most obscure answers we’ve scored since March 1, 2026. This post is about SHOAL; right now the leader on that list is CAROM.
The catch with Google Trends
Google Trends does not tell us “12,000 people searched SHOAL today.”
It gives a relative score from 0 to 100 inside whatever search you asked for. Think of it like grading on a curve for that one chart only:
- The busiest thing in that chart gets 100
- Everything else is scaled down from that peak
So if you looked up SHOAL alone, Trends would often stretch SHOAL so its busiest day is 100 — even if, in real life, far fewer people searched it than searched a huge term like WORDLE. The same would happen for CAROM on its own private chart. Those two solo charts would not share a yardstick, so you couldn’t fairly ask which Wordle day really drew more lookups.
Our fix: put every word on the same yardstick
We always compare each Wordle answer to a fixed reference word: WORDLE.
- First we ask Trends for WORDLE alone. That becomes our shared ruler (the “WORDLE chart”).
- Then we ask Trends for WORDLE + the answer together (for this post: WORDLE + SHOAL; for the current leader: WORDLE + CAROM). In each joint chart, the two words are already drawn to the same scale.
- We then translate the answer’s line onto the shared WORDLE ruler, day by day.
In words:
“On this day, SHOAL was X% as busy as WORDLE in the joint chart; map that onto how busy WORDLE looks on our master WORDLE chart.”
After that translation, SHOAL’s height and CAROM’s height mean something comparable. If CAROM’s Wordle-day height is bigger than SHOAL’s, that really does look like more lookup activity relative to WORDLE, not just “both hit the top of their own private chart.”
We call that shared-scale score the Obscurity Index series.
The spike math (the only formula that matters)
For one answer word on its Wordle day:
- L = the quietest day before the Wordle day (on the shared WORDLE scale)
- H = interest on the Wordle day (same scale)
Then:
Spike % = (H − L) ÷ max(L, 1) × 100
Careful reading of that:
- If interest goes from 2 to 22, spike = (22−2)/2 × 100 = 1000% (“ten times the quiet baseline, as a percent increase”).
- If the quiet baseline is 0, we pretend the baseline is 1 so we don’t divide by zero. That’s why a jump from 0→11 becomes 1100%, not infinity — which is the kind of jump SHOAL can show on this scale.
So the percentage is “how big was the jump from the pre-Wordle lull to Wordle day?”
H itself is the “how tall was that Wordle-day spike on the WORDLE yardstick?” number we also show on the list.
A word can look obscure either because the jump is huge, or because H is large (lots of lookups vs WORDLE), or both. We rank by the spike %, and we display H so volume isn’t invisible. That’s how CAROM can sit above SHOAL on the list even though both were sticky Wordle days.
What has to be true before we write a blog post
We don’t post about every Wordle answer. We post when:
- Trends data exists
- Wordle-day interest isn’t zero
- The Wordle day really is the peak in the window we looked at (so we’re not celebrating a random other spike)
- The spike clears a high bar: about the 90th percentile of our earlier scores on this same WORDLE-anchored scale (roughly: “as obscure as the obscurest 10% we’ve already measured”)
The “Where it ranks” section
That section above is built live when you open the page:
- only words scored on this WORDLE-anchored method
- sorted most obscure first
- one short sentence about SHOAL’s place
- then the shared list (CAROM at the top right now, with SHOAL highlighted here)
When a new obscure answer lands and reshuffles the order, this page updates with it. No frozen snapshot of an old ranking.
One-sentence summary
We map every Wordle answer onto a shared WORDLE scale, measure the jump from “quiet before Wordle” to “Wordle day,” and only blog the ones that clear a top-tier obscurity bar — with a live leaderboard so SHOAL’s place next to CAROM (and whoever comes next) stays honest.