Base Difficulty

Base difficulty: Level 145 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: 405 (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 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 658.15 333 100% 150 5
20th_books 600.18 363 100% 166 5
wiki_math 87.08 2703 97% 969 3
wiki_geography 399.18 1071 97% 344 4
wiki_biology 187.12 1026 97% 711 3
wiki_modern_life 263.74 1255 97% 554 4
wiki_arts 312.16 1138 97% 439 5
wiki_society 285.87 1116 97% 480 5
wiki_linguistics 303.07 1289 97% 403 5
wiki_physical_science 260.92 1112 97% 554 3
wiki_history 365.20 796 100% 357 4
early_modern_science 576.18 455 97% 196 5
religious_translated 703.43 358 97% 151 5
cooking 48.14 1769 97% 1822 downrated 1
legal_scotus 250.21 1168 97% 474 5
eu_parliament_debates 167.86 1418 97% 553 5
openstax_science 255.77 1063 97% 537 3
openstax_society 354.14 991 97% 382 5
wpa_life_histories 414.82 584 97% 246 5

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.