Base difficulty: Level 265 edit
Level distribution for noun (mental_construct): 265: 27 390: 2 460: 1 1060: 6 1070: 1 1120: 1
No difficulty overrides set. The base difficulty level will be used for all languages.
Add Difficulty Override
python -m storage.admin --calc-ranks to populate)
Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cefr |
A2 (2 of 6) | 2100 |
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 |
150.83 | 636 | 100% | 636 | 1 |
20th_books |
132.48 | 737 | 100% | 737 | 1 |
wiki_math |
44.20 | 2144 | 100% | 2144 | 1 |
wiki_geography |
45.51 | 2671 | 100% | 2671 | 1 |
wiki_biology |
57.21 | 2367 | 100% | 2367 | 1 |
wiki_modern_life |
74.51 | 1971 | 100% | 1971 | 1 |
wiki_arts |
165.66 | 757 | 100% | 757 | 1 |
wiki_society |
166.12 | 745 | 100% | 745 | 1 |
wiki_linguistics |
79.72 | 1496 | 100% | 1496 | 1 |
wiki_physical_science |
41.60 | 3049 | 100% | 3049 | 1 |
wiki_history |
155.06 | 774 | 100% | 774 | 1 |
early_modern_science |
229.78 | 467 | 100% | 467 | 1 |
religious_translated |
50.02 | 1898 | 100% | 1898 | 1 |
cooking |
82.71 | 1305 | 100% | 1305 | 1 |
legal_scotus |
83.90 | 1491 | 100% | 1491 | 1 |
eu_parliament_debates |
368.17 | 332 | 100% | 332 | 1 |
openstax_science |
103.70 | 1326 | 100% | 1326 | 1 |
openstax_society |
222.94 | 630 | 100% | 630 | 1 |
wpa_life_histories |
101.97 | 975 | 100% | 975 | 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.