Base difficulty: Level 225 edit
Level distribution for adjective (duration): 225: 8 340: 1 380: 1 1030: 1 1120: 32 1399: 1
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Extended (2 of 2) | 1600 |
Rank used = synthetic rank this tier contributes to the combined frequency rank (lower = more common).
Corpus Frequency
| Corpus | Freq (per M) | Best form | Share | Zipf rank | Forms |
|---|---|---|---|---|---|
19th_books |
34.41 | 2534 | 100% | 2534 | 1 |
20th_books |
27.13 | 2989 | 100% | 2989 | 1 |
wiki_math |
685.23 | 193 | 100% | 193 | 1 |
wiki_geography |
53.24 | 2574 | 100% | 2574 | 1 |
wiki_biology |
50.50 | 2673 | 100% | 2673 | 1 |
wiki_modern_life |
111.59 | 1323 | 100% | 1323 | 1 |
wiki_arts |
38.29 | 3514 | 100% | 3514 | 1 |
wiki_society |
42.03 | 3280 | 100% | 3280 | 1 |
wiki_linguistics |
24.02 | 4008 | 100% | 4008 | 1 |
wiki_physical_science |
582.43 | 190 | 100% | 190 | 1 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
0.00 | — | — | — | 0 |
religious_translated |
71.94 | 1430 | 100% | 1430 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
14.77 | 5473 | 100% | 5473 | 1 |
eu_parliament_debates |
44.49 | 2244 | 100% | 2244 | 1 |
openstax_science |
432.36 | 266 | 100% | 266 | 1 |
openstax_society |
74.34 | 1862 | 100% | 1862 | 1 |
wpa_life_histories |
19.90 | 3623 | 100% | 3623 | 1 |
Best form = the single best-ranked form in the corpus, share-blind — how the spelling itself ranked. Share = how much of that spelling belongs to this lemma, when several senses compete for it. Zipf rank = all the forms combined (variant spellings included), each scaled by its share, and what feeds the combined frequency rank. Combining forms improves on the best form, but a share below 100% pushes the other way and usually wins: a sense holding a small slice of a common spelling is a rare word, so its rank lands downrated below the best form — and once it falls past what the corpus can support it is capped at the rank an unlisted word would get.