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 |
45.36 | 1966 | 100% | 1966 | 1 |
20th_books |
36.60 | 2300 | 100% | 2300 | 1 |
wiki_math |
50.81 | 1978 | 100% | 1978 | 1 |
wiki_geography |
31.55 | 4224 | 100% | 4224 | 1 |
wiki_biology |
44.74 | 2991 | 100% | 2991 | 1 |
wiki_modern_life |
0.00 | — | — | — | 0 |
wiki_arts |
102.75 | 2380 | 100% | 1340 | 2 |
wiki_society |
731.98 | 260 | 100% | 147 | 2 |
wiki_linguistics |
25.26 | 3868 | 100% | 3868 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
150.62 | 1440 | 100% | 894 | 2 |
early_modern_science |
67.20 | 1705 | 100% | 1705 | 1 |
religious_translated |
36.78 | 2530 | 100% | 2530 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
105.24 | 1696 | 100% | 1142 | 2 |
eu_parliament_debates |
29.96 | 2928 | 100% | 2928 | 1 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
499.35 | 441 | 100% | 267 | 2 |
wpa_life_histories |
25.10 | 4283 | 100% | 2776 | 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.