Base Difficulty

Base difficulty: Level 1210 edit

Level distribution for noun (process_event): 19: 2 20: 1 196: 26 285: 25 289: 27 290: 29 300: 1 330: 2 350: 3 360: 1 370: 1 380: 1 405: 9 450: 1 460: 1 470: 1 476: 1 1000: 2 1010: 6 1020: 6 1030: 6 1040: 12 1050: 18 1060: 5 1070: 12 1080: 1 1110: 2 1120: 10 1130: 7 1202: 1 1204: 1 1210: 1 1211: 1 1216: 1 1399: 118

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: 7287 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cefr B1 (3 of 6) 4200

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 21.50 189 3% 4847 downrated 2
20th_books 15.30 225 3% 7950 downrated 1
wiki_math 0.91 2727 3% 8000 capped 1
wiki_geography 1.44 2697 3% 9000 capped 1
wiki_biology 2.47 1610 3% 9000 capped 1
wiki_modern_life 33.80 861 3% 4302 downrated 2
wiki_arts 1.87 2106 3% 10000 capped 1
wiki_society 0.78 4684 3% 11000 capped 1
wiki_linguistics 1.18 2764 3% 9000 capped 1
wiki_physical_science 0.00 — — — 0
wiki_history 1.56 2492 3% 9000 capped 1
early_modern_science 12.34 245 3% 8657 downrated 1
religious_translated 5.98 508 3% 10400 capped 1
cooking 57.48 343 3% 2059 downrated 2
legal_scotus 0.26 7265 3% 20000 capped 1
eu_parliament_debates 1.83 1696 3% 11000 capped 1
openstax_science 11.37 2070 3% 9173 downrated 2
openstax_society 0.84 3922 3% 11000 capped 1
wpa_life_histories 16.68 396 3% 5124 downrated 2

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.