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: 901 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
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 28.61 4153 100% 2540 2
20th_books 16.41 6865 100% 3611 2
wiki_math 1089.06 210 100% 122 2
wiki_geography 182.09 1399 100% 770 2
wiki_biology 0.00 — — — 0
wiki_modern_life 364.12 614 100% 360 2
wiki_arts 0.00 — — — 0
wiki_society 175.08 1162 100% 789 2
wiki_linguistics 0.00 — — — 0
wiki_physical_science 82.08 3136 100% 1586 2
wiki_history 130.26 1869 100% 1049 2
early_modern_science 194.78 1100 100% 600 2
religious_translated 66.78 2040 100% 1368 2
cooking 29.30 2452 100% 2452 1
legal_scotus 187.00 1043 100% 686 2
eu_parliament_debates 153.41 1279 100% 740 2
openstax_science 140.47 1362 100% 947 2
openstax_society 100.86 2051 100% 1306 2
wpa_life_histories 69.69 1789 100% 1285 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.