Base Difficulty

Base difficulty: Level 23 edit

Level distribution for verb (directional_movement): 5: 6 23: 4 26: 3 28: 2 120: 1 135: 2 145: 5 210: 1 254: 1 300: 1 330: 2 415: 1 460: 1 470: 9 1040: 1 1050: 2 1120: 1 1399: 18

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: 482 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
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 590.39 347 100% 171 4
20th_books 381.05 579 100% 260 4
wiki_math 85.21 1914 97% 1145 2
wiki_geography 240.08 1248 100% 577 3
wiki_biology 131.63 1808 97% 985 3
wiki_modern_life 197.45 1210 97% 730 3
wiki_arts 379.80 789 97% 354 4
wiki_society 264.02 866 97% 507 4
wiki_linguistics 26.09 3731 97% 3843 downrated 1
wiki_physical_science 61.41 2244 97% 2311 downrated 1
wiki_history 791.71 252 100% 138 3
early_modern_science 283.67 666 97% 386 4
religious_translated 524.25 361 97% 200 5
cooking 168.48 737 97% 759 downrated 1
legal_scotus 186.08 1286 97% 629 4
eu_parliament_debates 160.20 963 97% 651 3
openstax_science 221.77 1554 97% 589 4
openstax_society 358.28 655 97% 379 4
wpa_life_histories 310.73 668 100% 323 4

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.