Base difficulty: Level 2 edit
Level distribution for noun (vehicle): 2: 8 26: 4 210: 30 1040: 8 1218: 1 1221: 2
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 |
cambridge_yle |
Starters (1 of 3) | 325 |
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 |
131.99 | 712 | 100% | 712 | 1 |
20th_books |
131.41 | 743 | 100% | 743 | 1 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
123.56 | 1048 | 100% | 1048 | 1 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
206.00 | 605 | 100% | 605 | 1 |
wiki_arts |
54.77 | 2409 | 100% | 2409 | 1 |
wiki_society |
47.18 | 2843 | 100% | 2843 | 1 |
wiki_linguistics |
19.65 | 4318 | 100% | 4318 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
107.52 | 1185 | 100% | 1185 | 1 |
early_modern_science |
59.46 | 1849 | 100% | 1849 | 1 |
religious_translated |
51.79 | 1847 | 100% | 1847 | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
25.82 | 3686 | 100% | 3686 | 1 |
eu_parliament_debates |
23.99 | 3203 | 100% | 3203 | 1 |
openstax_science |
21.16 | 4892 | 100% | 4892 | 1 |
openstax_society |
43.68 | 2894 | 100% | 2894 | 1 |
wpa_life_histories |
135.81 | 759 | 100% | 759 | 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.