Base Difficulty

Base difficulty: Level 14 edit

Level distribution for adjective (size): 14: 3 17: 4 101: 6 340: 1 380: 1 420: 1 1010: 1 1080: 1 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, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 165 (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 Starters (1 of 3) 325
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 405.29 301 100% 256 3
20th_books 453.45 279 100% 239 3
wiki_math 806.16 327 100% 171 3
wiki_geography 881.16 174 100% 126 3
wiki_biology 2024.88 65 100% 48 3
wiki_modern_life 1125.71 109 100% 84 2
wiki_arts 538.07 276 100% 208 2
wiki_society 388.09 394 100% 307 2
wiki_linguistics 414.82 415 100% 302 3
wiki_physical_science 1270.55 107 100% 82 3
wiki_history 418.37 328 100% 274 2
early_modern_science 1318.02 105 100% 83 3
religious_translated 266.28 413 100% 413 1
cooking 2244.08 71 100% 68 2
legal_scotus 105.61 1489 100% 1138 2
eu_parliament_debates 397.43 341 100% 299 2
openstax_science 1430.00 93 100% 70 3
openstax_society 596.37 270 100% 206 2
wpa_life_histories 585.66 221 100% 197 3

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.