Base Difficulty

Base difficulty: Level 415 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: 3672 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B1 (3 of 6) 4200

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 48.07 1704 57% 1746 downrated 3
20th_books 24.64 2627 57% 3136 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 28.08 2792 57% 4886 downrated 1
wiki_biology 20.21 3578 57% 6262 downrated 1
wiki_modern_life 21.47 3762 57% 6583 downrated 1
wiki_arts 93.07 1493 57% 1462 3
wiki_society 31.93 2486 57% 4351 downrated 1
wiki_linguistics 20.58 3024 57% 5292 downrated 1
wiki_physical_science 21.66 3372 57% 5901 downrated 1
wiki_history 46.08 1684 57% 2947 downrated 1
early_modern_science 63.57 1630 57% 1653 downrated 3
religious_translated 26.55 2072 57% 3626 downrated 1
cooking 0.00 — — — 0
legal_scotus 32.15 4157 57% 2768 3
eu_parliament_debates 24.65 2898 57% 3192 downrated 2
openstax_science 16.15 3961 57% 6932 downrated 1
openstax_society 15.59 4175 57% 7306 downrated 1
wpa_life_histories 11.52 5139 57% 5729 downrated 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.