Base Difficulty

Base difficulty: Level 1399 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: 3552 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B2 (4 of 6) 6900

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 19.74 3815 10% 3857 downrated 2
20th_books 7.91 3529 10% 7276 downrated 2
wiki_math 4.26 2275 10% 8000 capped 1
wiki_geography 6.55 3995 10% 9000 capped 2
wiki_biology 0.00 — — — 0
wiki_modern_life 57.89 547 10% 2286 downrated 2
wiki_arts 108.73 220 10% 1065 downrated 3
wiki_society 48.87 1289 10% 2813 downrated 2
wiki_linguistics 2.78 3642 10% 9000 capped 1
wiki_physical_science 3.85 3340 10% 8000 capped 1
wiki_history 83.12 815 10% 1627 downrated 3
early_modern_science 0.00 — — — 0
religious_translated 20.52 2870 10% 3856 downrated 2
cooking 0.00 — — — 0
legal_scotus 103.57 1420 10% 1157 3
eu_parliament_debates 20.53 2230 10% 3590 downrated 2
openstax_science 44.23 1409 10% 2767 downrated 2
openstax_society 10.90 1284 10% 11000 capped 1
wpa_life_histories 5.72 6444 10% 8622 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.