Base Difficulty

Base difficulty: Level 290 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: 398 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr A1 (1 of 6) 800

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 111.29 1051 100% 816 2
20th_books 82.45 1505 100% 1065 2
wiki_math 123.57 1307 100% 891 2
wiki_geography 84.31 2515 100% 1606 2
wiki_biology 100.66 1389 100% 1389 1
wiki_modern_life 226.50 772 100% 607 2
wiki_arts 336.65 460 100% 360 2
wiki_society 544.35 386 100% 210 2
wiki_linguistics 287.52 591 100% 460 2
wiki_physical_science 157.88 919 100% 919 1
wiki_history 259.36 843 100% 506 2
early_modern_science 593.83 188 100% 174 2
religious_translated 281.64 649 100% 377 2
cooking 34.93 2198 100% 2198 1
legal_scotus 1539.14 93 100% 71 2
eu_parliament_debates 865.44 189 100% 143 2
openstax_science 354.92 462 100% 371 2
openstax_society 560.94 449 100% 231 2
wpa_life_histories 38.54 2316 100% 2316 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.