Base Difficulty

Base difficulty: Level 5 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: 117 (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 3344.72 82 100% 35 5
20th_books 3610.05 78 100% 33 5
wiki_math 252.92 1365 100% 435 4
wiki_geography 597.53 368 100% 212 4
wiki_biology 468.33 750 100% 293 4
wiki_modern_life 578.59 674 100% 234 4
wiki_arts 714.26 380 100% 170 4
wiki_society 744.89 394 100% 164 4
wiki_linguistics 656.19 590 100% 202 4
wiki_physical_science 408.89 1000 100% 354 4
wiki_history 815.33 187 100% 130 4
early_modern_science 928.71 286 100% 117 5
religious_translated 2887.02 91 100% 43 5
cooking 654.69 410 100% 200 4
legal_scotus 256.02 1086 100% 476 4
eu_parliament_debates 942.89 267 100% 126 5
openstax_science 469.21 720 100% 296 4
openstax_society 780.85 410 100% 169 4
wpa_life_histories 3384.22 87 100% 40 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.