Base Difficulty

Base difficulty: Level 4 edit

Level distribution for numeral (cardinal): 4: 31 490: 72

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: 1703 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 1046.32 115 100% 115 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 91.24 1610 100% 1610 1
wiki_arts 0.00 — — — 0
wiki_society 27.94 4633 100% 4633 1
wiki_linguistics 65.57 1947 100% 1947 1
wiki_physical_science 252.52 541 100% 541 1
wiki_history 0.00 — — — 0
early_modern_science 19.36 4702 100% 4702 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 13.96 5686 100% 5686 1
eu_parliament_debates 24.54 3297 100% 3297 1
openstax_science 242.29 572 100% 572 1
openstax_society 73.99 1874 100% 1874 1
wpa_life_histories 7.17 8387 100% 8387 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.