Base Difficulty

Base difficulty: Level 274 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
basic_english Extended (2 of 2) 1600
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 272.53 375 100% 375 1
20th_books 237.82 440 100% 440 1
wiki_math 1483.12 78 100% 78 1
wiki_geography 83.76 1569 100% 1569 1
wiki_biology 229.20 549 100% 549 1
wiki_modern_life 366.29 280 100% 280 1
wiki_arts 230.98 510 100% 510 1
wiki_society 425.14 245 100% 245 1
wiki_linguistics 1063.85 104 100% 104 1
wiki_physical_science 499.21 242 100% 242 1
wiki_history 182.75 631 100% 631 1
early_modern_science 683.97 151 100% 151 1
religious_translated 142.37 749 100% 749 1
cooking 199.41 659 100% 659 1
legal_scotus 2613.23 38 100% 38 1
eu_parliament_debates 729.84 175 100% 175 1
openstax_science 451.73 238 100% 238 1
openstax_society 478.43 244 100% 244 1
wpa_life_histories 147.02 711 100% 711 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.