Base Difficulty

Base difficulty: Level 270 edit

Level distribution for noun (concept_idea): 19: 2 20: 3 26: 1 27: 1 221: 29 270: 31 274: 37 275: 31 280: 29 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 7 1120: 1

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cambridge_yle Movers (2 of 3) 750

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 108.75 857 100% 857 1
20th_books 87.61 1056 100% 1056 1
wiki_math 45.37 2104 100% 2104 1
wiki_geography 72.68 1793 100% 1793 1
wiki_biology 111.16 1247 100% 1247 1
wiki_modern_life 162.68 828 100% 828 1
wiki_arts 50.69 2571 100% 2571 1
wiki_society 32.24 3957 100% 3957 1
wiki_linguistics 53.89 2080 100% 2080 1
wiki_physical_science 0.00 — — — 0
wiki_history 0.00 — — — 0
early_modern_science 193.72 552 100% 552 1
religious_translated 23.24 3506 100% 3506 1
cooking 412.42 373 100% 373 1
legal_scotus 18.11 4630 100% 4630 1
eu_parliament_debates 21.22 3425 100% 3425 1
openstax_science 138.96 1021 100% 1021 1
openstax_society 63.05 2162 100% 2162 1
wpa_life_histories 102.89 965 100% 965 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.