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: 2725 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600

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 23.08 3522 100% 3522 1
20th_books 15.35 4671 100% 4671 1
wiki_math 51.97 1957 100% 1957 1
wiki_geography 77.73 1811 100% 1811 1
wiki_biology 45.10 2976 100% 2976 1
wiki_modern_life 31.56 4347 100% 4347 1
wiki_arts 105.72 1298 100% 1298 1
wiki_society 55.18 2524 100% 2524 1
wiki_linguistics 38.69 2895 100% 2895 1
wiki_physical_science 31.13 3894 100% 3894 1
wiki_history 77.37 1757 100% 1757 1
early_modern_science 67.96 1689 100% 1689 1
religious_translated 75.88 1360 100% 1360 1
cooking 33.80 2248 100% 2248 1
legal_scotus 10.32 6759 100% 6759 1
eu_parliament_debates 26.45 3183 100% 3183 1
openstax_science 23.69 4499 100% 4499 1
openstax_society 44.23 2865 100% 2865 1
wpa_life_histories 21.51 3658 100% 3658 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.