Base Difficulty

Base difficulty: Level 12 edit

Level distribution for numeral (ordinal): 12: 10 490: 10

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: 82 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600

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 1097.89 118 100% 118 1
20th_books 1108.91 117 100% 117 1
wiki_math 1589.12 70 100% 70 1
wiki_geography 2025.64 38 100% 38 1
wiki_biology 1331.73 67 100% 67 1
wiki_modern_life 2296.12 41 100% 41 1
wiki_arts 2658.83 36 100% 36 1
wiki_society 1514.37 54 100% 54 1
wiki_linguistics 1619.79 68 100% 68 1
wiki_physical_science 1488.73 61 100% 61 1
wiki_history 2624.43 34 100% 34 1
early_modern_science 1626.57 71 100% 71 1
religious_translated 976.15 133 100% 133 1
cooking 867.66 184 100% 184 1
legal_scotus 930.57 114 100% 114 1
eu_parliament_debates 1206.69 96 100% 96 1
openstax_science 1160.35 79 100% 79 1
openstax_society 1254.57 80 100% 80 1
wpa_life_histories 1490.78 93 100% 93 1

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.