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
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 13.76 4989 100% 4989 1
20th_books 31.20 2543 100% 2543 1
wiki_math 26.75 2941 100% 2941 1
wiki_geography 541.64 232 100% 199 2
wiki_biology 221.96 1037 100% 625 2
wiki_modern_life 372.57 623 100% 346 2
wiki_arts 623.54 204 100% 169 2
wiki_society 781.06 176 100% 127 2
wiki_linguistics 392.42 417 100% 316 2
wiki_physical_science 95.81 2622 100% 1373 2
wiki_history 466.68 251 100% 215 2
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 13.95 5366 100% 5366 1
eu_parliament_debates 162.92 898 100% 685 2
openstax_science 137.30 1491 100% 973 2
openstax_society 1010.84 165 100% 113 2
wpa_life_histories 15.78 4318 100% 4318 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.