Base Difficulty

Base difficulty: Level 456 edit

Level distribution for noun (participant_role): 405: 15 456: 1 1200: 5 1201: 5 1202: 1 1203: 2 1204: 8 1205: 1 1206: 9 1207: 9 1208: 1 1209: 4 1212: 7 1213: 1 1214: 2 1215: 3 1217: 1 1218: 1 1219: 4 1226: 1 1399: 6

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: 3188 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 18.46 1152 20% 4854 downrated 2
20th_books 13.67 1529 20% 6305 downrated 2
wiki_math 11.75 1808 20% 8000 capped 1
wiki_geography 56.92 571 20% 2270 downrated 2
wiki_biology 10.60 2559 20% 9000 capped 1
wiki_modern_life 19.84 1484 20% 7420 downrated 1
wiki_arts 97.86 280 20% 1141 downrated 2
wiki_society 85.18 304 20% 1333 downrated 2
wiki_linguistics 99.84 304 20% 1244 downrated 2
wiki_physical_science 33.38 1094 20% 4223 downrated 2
wiki_history 98.51 224 20% 1035 downrated 2
early_modern_science 41.14 600 20% 2604 downrated 2
religious_translated 9.67 2000 20% 10000 downrated 1
cooking 0.00 — — — 0
legal_scotus 13.60 1838 20% 9190 downrated 1
eu_parliament_debates 19.79 1196 20% 5980 downrated 1
openstax_science 30.65 1205 20% 4419 downrated 2
openstax_society 92.02 315 20% 1341 downrated 2
wpa_life_histories 5.17 2969 20% 14845 downrated 1

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.