Base Difficulty

Base difficulty: Level 1203 edit

Level distribution for verb (rule_defined_action): 415: 1 475: 5 485: 2 1200: 1 1202: 3 1203: 1 1204: 2 1205: 3 1206: 3 1208: 3 1211: 1 1214: 5 1220: 4 1224: 1 1226: 3 1399: 7

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: 9356 (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 Flyers (3 of 3) 1200
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 10.86 607 1% 8649 downrated 5
20th_books 11.97 604 1% 8280 downrated 5
wiki_math 1.58 3281 3% 8000 capped 3
wiki_geography 3.31 2110 3% 9000 capped 3
wiki_biology 4.78 1892 3% 9000 capped 4
wiki_modern_life 6.68 1375 3% 10000 capped 4
wiki_arts 6.05 2030 3% 10000 capped 5
wiki_society 3.29 3945 1% 11000 capped 4
wiki_linguistics 4.76 1936 1% 9000 capped 4
wiki_physical_science 6.60 1835 3% 8000 capped 4
wiki_history 7.56 1008 3% 9000 capped 4
early_modern_science 7.07 831 1% 10400 capped 5
religious_translated 7.19 967 1% 10400 capped 5
cooking 14.43 459 3% 5200 capped 3
legal_scotus 1.75 4079 3% 20000 capped 5
eu_parliament_debates 1.65 2805 3% 11000 capped 3
openstax_science 8.09 1152 3% 11000 capped 4
openstax_society 4.68 2129 3% 11000 capped 4
wpa_life_histories 12.09 536 3% 8273 downrated 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.