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 |
B1 (3 of 6) | 4200 |
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 |
26.24 | 3158 | 100% | 3158 | 1 |
20th_books |
33.86 | 2465 | 100% | 2465 | 1 |
wiki_math |
130.14 | 1280 | 100% | 854 | 2 |
wiki_geography |
44.61 | 3055 | 100% | 3055 | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
85.94 | 2797 | 100% | 1666 | 2 |
wiki_arts |
51.39 | 2689 | 100% | 2689 | 1 |
wiki_society |
265.00 | 955 | 100% | 513 | 2 |
wiki_linguistics |
28.83 | 3542 | 100% | 3542 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
137.58 | 1295 | 100% | 968 | 2 |
early_modern_science |
21.63 | 4282 | 100% | 4282 | 1 |
religious_translated |
17.60 | 4419 | 100% | 4419 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
1483.04 | 97 | 100% | 74 | 2 |
eu_parliament_debates |
697.38 | 284 | 100% | 174 | 2 |
openstax_science |
173.20 | 1480 | 100% | 794 | 2 |
openstax_society |
517.49 | 396 | 100% | 254 | 2 |
wpa_life_histories |
8.24 | 6878 | 100% | 6878 | 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.