Base Difficulty

Base difficulty: Level 470 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: 1529 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B2 (4 of 6) 6900

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 84.63 1254 50% 1055 4
20th_books 56.79 1808 50% 1512 3
wiki_math 204.99 446 40% 636 downrated 3
wiki_geography 17.29 3157 40% 7892 downrated 1
wiki_biology 40.27 1897 40% 3253 downrated 2
wiki_modern_life 73.77 1132 40% 1967 downrated 2
wiki_arts 92.67 895 40% 1438 downrated 3
wiki_society 144.38 428 40% 828 downrated 2
wiki_linguistics 101.25 898 40% 1296 downrated 2
wiki_physical_science 94.88 938 40% 1533 downrated 2
wiki_history 71.20 1066 40% 1850 downrated 2
early_modern_science 93.25 1161 40% 1182 downrated 4
religious_translated 72.49 1718 40% 1302 4
cooking 0.00 — — — 0
legal_scotus 124.55 471 40% 919 downrated 4
eu_parliament_debates 198.43 276 40% 561 downrated 4
openstax_science 117.12 709 40% 1150 downrated 3
openstax_society 165.14 423 40% 779 downrated 3
wpa_life_histories 17.28 4281 50% 3997 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.