Base Difficulty

Base difficulty: Level 475 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: 1812 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 20.18 2700 33% 3923 downrated 3
20th_books 20.19 2317 33% 3788 downrated 3
wiki_math 175.93 351 33% 727 downrated 4
wiki_geography 63.60 666 33% 1998 downrated 1
wiki_biology 116.30 332 33% 996 downrated 1
wiki_modern_life 135.04 274 33% 778 downrated 2
wiki_arts 119.48 446 33% 1005 downrated 4
wiki_society 66.97 628 33% 1884 downrated 1
wiki_linguistics 102.83 563 33% 1245 downrated 3
wiki_physical_science 50.12 972 33% 2916 downrated 1
wiki_history 70.52 575 33% 1725 downrated 1
early_modern_science 58.47 1014 33% 1883 downrated 3
religious_translated 8.26 3459 33% 10377 downrated 1
cooking 0.00 — — — 0
legal_scotus 31.03 2119 33% 3167 downrated 4
eu_parliament_debates 96.93 1076 33% 1161 downrated 4
openstax_science 47.93 1394 33% 2612 downrated 3
openstax_society 43.68 1348 33% 3060 downrated 2
wpa_life_histories 5.60 4453 33% 13359 downrated 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.