Base Difficulty

Base difficulty: Level 429 edit

Level distribution for adjective (temporal_status): 360: 1 390: 3 429: 15 1000: 3 1010: 1 1020: 1 1030: 3 1050: 1 1070: 4 1120: 29 1399: 4

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: 1144 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B1 (3 of 6) 4200

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 68.67 1089 80% 1361 downrated 1
20th_books 32.31 2129 80% 2661 downrated 1
wiki_math 52.66 1671 80% 2089 downrated 1
wiki_geography 381.53 221 80% 276 downrated 1
wiki_biology 92.08 1206 80% 1507 downrated 1
wiki_modern_life 92.92 1261 80% 1576 downrated 1
wiki_arts 127.13 823 80% 1029 downrated 1
wiki_society 189.16 505 80% 631 downrated 1
wiki_linguistics 153.49 697 80% 871 downrated 1
wiki_physical_science 61.05 1887 80% 2359 downrated 1
wiki_history 282.08 305 80% 381 downrated 1
early_modern_science 267.91 321 80% 401 downrated 1
religious_translated 135.65 634 80% 792 downrated 1
cooking 27.04 2251 80% 2814 downrated 1
legal_scotus 112.53 929 80% 1161 downrated 1
eu_parliament_debates 86.27 1112 80% 1390 downrated 1
openstax_science 18.62 4575 80% 5719 downrated 1
openstax_society 125.99 901 80% 1126 downrated 1
wpa_life_histories 49.30 1573 80% 1966 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.