Base Difficulty

Base difficulty: Level 14 edit

Level distribution for adjective (quality): 3: 1 11: 10 14: 12 17: 23 18: 3 20: 4 318: 35 320: 28 330: 1 340: 2 360: 2 380: 1 400: 3 420: 4 430: 27 469: 27 470: 2 1040: 2 1060: 2 1070: 13 1090: 3 1110: 2 1120: 47 1214: 1 1399: 16

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: 175 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Movers (2 of 3) 750
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 162.72 608 100% 608 1
20th_books 224.01 473 100% 473 1
wiki_math 1008.21 122 100% 122 1
wiki_geography 346.26 338 100% 338 1
wiki_biology 932.32 105 100% 105 1
wiki_modern_life 1005.83 79 100% 79 1
wiki_arts 808.09 116 100% 116 1
wiki_society 946.33 89 100% 89 1
wiki_linguistics 1376.87 80 100% 80 1
wiki_physical_science 1152.88 76 100% 76 1
wiki_history 353.18 304 100% 304 1
early_modern_science 718.74 143 100% 143 1
religious_translated 205.76 527 100% 527 1
cooking 127.33 945 100% 945 1
legal_scotus 547.86 186 100% 186 1
eu_parliament_debates 481.06 254 100% 254 1
openstax_science 1462.08 67 100% 67 1
openstax_society 1074.75 94 100% 94 1
wpa_life_histories 270.68 411 100% 411 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.