Base Difficulty

Base difficulty: Level 5 edit

Level distribution for noun (human): 5: 9 63: 27

Per-Language Difficulty Overrides

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

Add Difficulty Override
-1 to exclude, 1-100 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 Starters (1 of 3) 325

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 858.07 195 100% 148 2
20th_books 1214.94 129 100% 112 2
wiki_math 203.23 948 100% 662 2
wiki_geography 1605.46 59 100% 57 2
wiki_biology 495.98 267 100% 228 2
wiki_modern_life 1135.27 106 100% 80 2
wiki_arts 929.97 148 100% 107 2
wiki_society 2504.19 48 100% 36 2
wiki_linguistics 2070.72 85 100% 53 2
wiki_physical_science 338.96 517 100% 413 2
wiki_history 1635.32 63 100% 57 2
early_modern_science 450.74 367 100% 240 2
religious_translated 1669.82 89 100% 73 2
cooking 222.07 862 100% 523 2
legal_scotus 865.87 154 100% 122 2

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.