Base Difficulty

Base difficulty: Level 285 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: 1977 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 154.75 1120 100% 767 2
wiki_geography 147.90 908 100% 908 1
wiki_biology 53.04 2557 100% 2557 1
wiki_modern_life 78.79 1877 100% 1877 1
wiki_arts 53.85 2566 100% 2566 1
wiki_society 73.57 1909 100% 1909 1
wiki_linguistics 58.58 2127 100% 2127 1
wiki_physical_science 150.86 969 100% 969 1
wiki_history 116.21 1131 100% 1131 1
early_modern_science 39.87 2711 100% 2711 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 17.81 4907 100% 4907 1
eu_parliament_debates 26.56 3174 100% 3174 1
openstax_science 98.08 1402 100% 1402 1
openstax_society 136.41 1039 100% 1039 1
wpa_life_histories 0.00 — — — 0

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.