Base Difficulty

Base difficulty: Level 355 edit

Level distribution for adjective (physical_property): 3: 1 8: 2 11: 11 14: 20 17: 9 18: 7 20: 2 27: 3 133: 1 179: 1 249: 1 330: 1 340: 1 355: 38 360: 1 370: 2 379: 1 380: 1 420: 1 1000: 1 1010: 3 1040: 8 1050: 5 1090: 2 1120: 16 1209: 1 1399: 9

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: 1954 (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 Movers (2 of 3) 750
cefr A2 (2 of 6) 2100

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 54.24 1296 67% 1623 downrated 2
20th_books 52.87 1383 67% 1686 downrated 2
wiki_math 95.47 1304 67% 1201 2
wiki_geography 0.00 — — — 0
wiki_biology 33.68 2688 67% 4032 downrated 1
wiki_modern_life 20.75 4401 67% 6602 downrated 1
wiki_arts 22.91 3898 67% 5847 downrated 1
wiki_society 32.89 2836 67% 4254 downrated 1
wiki_linguistics 73.81 1183 67% 1774 downrated 1
wiki_physical_science 189.76 618 67% 740 downrated 2
wiki_history 33.81 2696 67% 4044 downrated 1
early_modern_science 52.40 2019 67% 2055 downrated 2
religious_translated 84.52 835 67% 1252 downrated 1
cooking 0.00 — — — 0
legal_scotus 14.71 5540 67% 4932 2
eu_parliament_debates 32.30 2532 67% 2560 downrated 2
openstax_science 102.79 1126 67% 1315 downrated 2
openstax_society 53.19 2522 67% 2378 2
wpa_life_histories 28.68 2104 67% 3156 downrated 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.