Base Difficulty

Base difficulty: Level 196 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: 861 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Flyers (3 of 3) 1200
cefr A2 (2 of 6) 2100

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 235.14 647 80% 411 2
20th_books 217.07 685 80% 463 2
wiki_math 297.50 602 80% 459 2
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 167.97 1042 80% 861 2
wiki_arts 135.06 1516 80% 1032 2
wiki_society 71.45 2770 80% 1950 2
wiki_linguistics 26.23 3283 80% 4104 downrated 1
wiki_physical_science 148.20 1252 80% 985 2
wiki_history 45.67 2403 80% 3004 downrated 1
early_modern_science 101.76 1414 80% 1126 2
religious_translated 104.83 1290 80% 965 2
cooking 0.00 — — — 0
legal_scotus 134.71 1143 80% 936 2
eu_parliament_debates 352.13 387 80% 351 2
openstax_science 389.33 380 80% 337 2
openstax_society 170.97 1027 80% 820 2
wpa_life_histories 120.10 1179 80% 815 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.