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: 1063 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
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 22.68 4908 100% 3000 2
20th_books 6.31 8603 100% 8603 1
wiki_math 34.65 2593 100% 2593 1
wiki_geography 404.27 500 100% 316 2
wiki_biology 77.57 2936 100% 1672 2
wiki_modern_life 228.65 1001 100% 627 2
wiki_arts 232.58 746 100% 567 2
wiki_society 146.79 1745 100% 952 2
wiki_linguistics 89.21 1886 100% 1315 2
wiki_physical_science 47.19 2839 100% 2839 1
wiki_history 228.21 920 100% 584 2
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 45.74 3741 100% 2094 2
eu_parliament_debates 463.00 481 100% 264 2
openstax_science 434.30 379 100% 297 2
openstax_society 157.91 1675 100% 872 2
wpa_life_histories 79.10 1349 100% 1161 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.