Base Difficulty

Base difficulty: Level 299 edit

Level distribution for noun (social_institution): 299: 42 360: 1 405: 1 1020: 2 1030: 7 1040: 1 1060: 11 1070: 7 1120: 6

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200

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 22.98 4454 100% 2857 2
20th_books 95.94 1077 100% 913 2
wiki_math 0.00 — — — 0
wiki_geography 210.43 809 100% 599 2
wiki_biology 0.00 — — — 0
wiki_modern_life 63.25 3806 100% 2121 2
wiki_arts 69.05 3341 100% 1785 2
wiki_society 220.95 1156 100% 606 2
wiki_linguistics 45.47 3567 100% 1945 2
wiki_physical_science 0.00 — — — 0
wiki_history 198.29 874 100% 626 2
early_modern_science 36.83 2731 100% 2731 1
religious_translated 16.74 4420 100% 4420 1
cooking 0.00 — — — 0
legal_scotus 46.01 3830 100% 1981 2
eu_parliament_debates 0.00 — — — 0
openstax_science 27.38 4027 100% 4027 1
openstax_society 300.82 569 100% 458 2
wpa_life_histories 170.34 948 100% 573 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.