Base Difficulty

Base difficulty: Level 1399 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: 5496 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600

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 1.56 6840 17% 20000 capped 1
20th_books 0.00 — — — 0
wiki_math 84.07 1448 100% 1356 2
wiki_geography 0.00 — — — 0
wiki_biology 9.55 2387 17% 9000 capped 1
wiki_modern_life 11.47 2159 17% 10000 capped 1
wiki_arts 0.00 — — — 0
wiki_society 5.04 4369 17% 11000 capped 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 10.83 2195 17% 8000 capped 1
wiki_history 0.00 — — — 0
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 48.96 682 17% 2245 downrated 2
eu_parliament_debates 20.28 3565 17% 3498 2
openstax_science 27.55 2548 17% 3886 downrated 2
openstax_society 5.99 3381 17% 11000 capped 1
wpa_life_histories 0.00 — — — 0

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.