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 |
113.15 | 824 | 100% | 824 | 1 |
20th_books |
121.15 | 801 | 100% | 801 | 1 |
wiki_math |
129.12 | 1003 | 100% | 1003 | 1 |
wiki_geography |
48.28 | 2547 | 100% | 2547 | 1 |
wiki_biology |
45.62 | 2919 | 100% | 2919 | 1 |
wiki_modern_life |
111.77 | 1303 | 100% | 1303 | 1 |
wiki_arts |
169.75 | 735 | 100% | 735 | 1 |
wiki_society |
533.15 | 174 | 100% | 174 | 1 |
wiki_linguistics |
232.42 | 547 | 100% | 547 | 1 |
wiki_physical_science |
115.22 | 1261 | 100% | 1261 | 1 |
wiki_history |
192.10 | 599 | 100% | 599 | 1 |
early_modern_science |
387.44 | 276 | 100% | 276 | 1 |
religious_translated |
740.39 | 169 | 100% | 169 | 1 |
cooking |
61.18 | 1567 | 100% | 1567 | 1 |
legal_scotus |
130.54 | 986 | 100% | 986 | 1 |
eu_parliament_debates |
140.85 | 851 | 100% | 851 | 1 |
openstax_science |
122.78 | 1151 | 100% | 1151 | 1 |
openstax_society |
371.70 | 331 | 100% | 331 | 1 |
wpa_life_histories |
47.79 | 1870 | 100% | 1870 | 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.