Base Difficulty

Base difficulty: Level 315 edit

Level distribution for noun (organization_name): -1: 1 315: 2 1120: 2

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: 7177 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Flyers (3 of 3) 1200
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 5.43 4506 17% 13786 downrated 2
20th_books 12.06 2124 17% 7043 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 27.11 1687 17% 5231 downrated 2
wiki_biology 0.00 — — — 0
wiki_modern_life 0.00 — — — 0
wiki_arts 15.16 2278 17% 8957 downrated 2
wiki_society 26.55 1690 17% 5328 downrated 2
wiki_linguistics 23.13 1694 17% 5487 downrated 2
wiki_physical_science 0.00 — — — 0
wiki_history 20.49 1641 17% 6570 downrated 2
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 6.14 3970 17% 14421 downrated 2
eu_parliament_debates 5.89 3911 17% 11000 capped 2
openstax_science 0.00 — — — 0
openstax_society 18.45 2119 17% 7239 downrated 2
wpa_life_histories 15.18 1558 17% 5855 downrated 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.