Base difficulty: Level 275 edit
Level distribution for noun (concept_idea): 19: 2 20: 3 26: 1 27: 1 221: 29 270: 31 274: 37 275: 31 280: 29 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 7 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 |
Extended (2 of 2) | 1600 |
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 |
261.04 | 394 | 100% | 394 | 1 |
20th_books |
238.46 | 438 | 100% | 438 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
38.02 | 3395 | 100% | 3395 | 1 |
wiki_modern_life |
33.14 | 4096 | 100% | 4096 | 1 |
wiki_arts |
34.02 | 3639 | 100% | 3639 | 1 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
37.06 | 3353 | 100% | 3353 | 1 |
wiki_history |
27.69 | 4197 | 100% | 4197 | 1 |
early_modern_science |
146.54 | 744 | 100% | 744 | 1 |
religious_translated |
281.58 | 385 | 100% | 385 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
8.74 | 7017 | 100% | 7017 | 1 |
eu_parliament_debates |
27.72 | 2983 | 100% | 2983 | 1 |
openstax_science |
23.64 | 4512 | 100% | 4512 | 1 |
openstax_society |
21.02 | 5054 | 100% | 5054 | 1 |
wpa_life_histories |
131.24 | 777 | 100% | 777 | 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.