Base Difficulty

Base difficulty: Level 355 edit

Level distribution for adjective (physical_property): -1: 2 3: 1 11: 13 14: 18 17: 7 18: 19 20: 2 340: 1 355: 37 360: 1 370: 1 380: 1 420: 1 1000: 1 1010: 3 1040: 8 1050: 5 1090: 2 1120: 15 1209: 1

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 103.13 193 17% 1158 downrated 1
20th_books 71.33 271 17% 1561 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 21.43 1009 17% 6054 downrated 1
wiki_biology 19.67 1166 17% 6996 downrated 1
wiki_modern_life 16.43 1474 17% 8844 downrated 1
wiki_arts 13.55 1629 17% 9774 downrated 1
wiki_society 21.13 1027 17% 6162 downrated 1
wiki_linguistics 7.95 2305 17% 9000 capped 1
wiki_physical_science 12.23 1920 17% 8000 capped 1
wiki_history 23.64 868 17% 5208 downrated 1
early_modern_science 17.20 1108 17% 6648 downrated 1
religious_translated 33.31 534 17% 3204 downrated 1
cooking 9.63 1621 17% 5200 capped 1
legal_scotus 4.65 3494 17% 20000 capped 1
eu_parliament_debates 30.78 1033 17% 3486 downrated 3
openstax_science 8.43 2544 17% 11000 capped 1
openstax_society 43.34 613 17% 3161 downrated 2
wpa_life_histories 46.30 415 17% 2377 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.