Base difficulty: Level 265 edit
Level distribution for noun (mental_construct): 265: 27 300: 1 390: 2 460: 1 1060: 6 1070: 1 1120: 1 1399: 30
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cefr |
A1 (1 of 6) | 800 |
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 |
687.14 | 190 | 100% | 174 | 2 |
20th_books |
707.16 | 189 | 100% | 170 | 2 |
wiki_math |
34.65 | 2584 | 100% | 2584 | 1 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
29.63 | 4566 | 100% | 4566 | 1 |
wiki_arts |
106.38 | 1290 | 100% | 1290 | 1 |
wiki_society |
316.03 | 390 | 100% | 360 | 2 |
wiki_linguistics |
77.39 | 1656 | 100% | 1656 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
116.35 | 1130 | 100% | 1130 | 1 |
early_modern_science |
363.74 | 377 | 100% | 300 | 2 |
religious_translated |
1082.22 | 126 | 100% | 115 | 2 |
cooking |
75.50 | 1376 | 100% | 1376 | 1 |
legal_scotus |
115.36 | 1269 | 100% | 1058 | 2 |
eu_parliament_debates |
210.46 | 627 | 100% | 538 | 2 |
openstax_science |
61.92 | 2144 | 100% | 2144 | 1 |
openstax_society |
177.75 | 973 | 100% | 770 | 2 |
wpa_life_histories |
302.95 | 395 | 100% | 353 | 2 |
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.