Base Difficulty

Base difficulty: Level 18 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 137.60 779 100% 637 3
20th_books 143.16 753 100% 631 3
wiki_math 0.00 — — — 0
wiki_geography 227.73 644 100% 536 2
wiki_biology 190.10 692 100% 692 1
wiki_modern_life 59.35 2455 100% 2455 1
wiki_arts 89.47 1486 100% 1486 1
wiki_society 59.75 2277 100% 2277 1
wiki_linguistics 62.88 1858 100% 1858 1
wiki_physical_science 155.31 930 100% 930 1
wiki_history 77.04 1686 100% 1686 1
early_modern_science 85.16 1332 100% 1332 1
religious_translated 170.53 612 100% 612 1
cooking 402.22 411 100% 350 2
legal_scotus 7.49 7592 100% 7592 1
eu_parliament_debates 40.41 2359 100% 2359 1
openstax_science 79.64 1730 100% 1730 1
openstax_society 99.72 1401 100% 1401 1
wpa_life_histories 128.27 823 100% 752 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.