Word-frequency data and mechanically-derived forms are loading. Corpus details, combined ranks and regular paradigms may be incomplete.
Base Difficulty

Base difficulty: Level 330 edit

Level distribution for verb (creation_action): 7: 1 10: 1 205: 1 260: 1 295: 1 330: 3 380: 1 400: 1 415: 1 455: 1 470: 12 475: 7 485: 1 1000: 1 1010: 1 1040: 1 1070: 1 1110: 2 1120: 1 1399: 31

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cefr C1 (5 of 6) 12000

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 2.23 3605 10% 20000 capped 1
20th_books 1.96 3892 10% 20000 capped 1
wiki_math 0.00 — — — 0
wiki_geography 10.00 1391 10% 9000 capped 1
wiki_biology 0.00 — — — 0
wiki_modern_life 3.21 4294 10% 10000 capped 1
wiki_arts 19.31 877 10% 6878 downrated 2
wiki_society 0.00 — — — 0
wiki_linguistics 0.00 — — — 0
wiki_physical_science 4.20 3120 10% 8000 capped 1
wiki_history 4.18 3225 10% 9000 capped 1
early_modern_science 3.64 2908 10% 10400 capped 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 0.00 — — — 0
eu_parliament_debates 0.00 — — — 0
openstax_science 3.49 3409 10% 11000 capped 1
openstax_society 3.43 3514 10% 11000 capped 1
wpa_life_histories 0.48 10000 10% 20000 capped 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.