Base Difficulty

Base difficulty: Level 26 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: 923 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Starters (1 of 3) 325
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 195.59 1099 94% 459 4
20th_books 202.45 1057 94% 455 4
wiki_math 289.94 553 94% 415 3
wiki_geography 272.13 1483 100% 516 4
wiki_biology 192.94 982 94% 689 3
wiki_modern_life 162.89 1109 94% 883 2
wiki_arts 76.98 1695 94% 1797 downrated 1
wiki_society 57.39 2293 94% 2431 downrated 1
wiki_linguistics 43.60 2538 94% 2690 downrated 1
wiki_physical_science 85.49 1603 94% 1699 downrated 1
wiki_history 149.98 2281 94% 904 3
early_modern_science 285.97 1061 94% 400 4
religious_translated 78.00 1804 94% 1206 2
cooking 28.70 2385 94% 2528 downrated 1
legal_scotus 131.92 1206 94% 831 4
eu_parliament_debates 45.63 2643 94% 1780 2
openstax_science 235.72 758 94% 569 3
openstax_society 79.94 2172 94% 1586 2
wpa_life_histories 214.97 979 94% 445 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.