Base Difficulty

Base difficulty: Level 36 edit

Level distribution for noun (vehicle): 2: 7 36: 5 43: 21

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 87.53 854 80% 1027 downrated 1
20th_books 157.95 536 80% 642 downrated 1
wiki_math 0.00 0
wiki_geography 65.86 1598 80% 2004 downrated 1
wiki_biology 0.00 0
wiki_modern_life 95.72 1203 80% 1530 downrated 1
wiki_arts 35.18 2904 80% 3659 downrated 1
wiki_society 19.78 4801 80% 6001 downrated 1
wiki_linguistics 17.84 4011 80% 5014 downrated 1
wiki_physical_science 0.00 0
wiki_history 40.50 2513 80% 3141 downrated 1
early_modern_science 44.81 1953 80% 2441 downrated 1
religious_translated 20.16 3318 80% 4148 downrated 1
cooking 0.00 0
legal_scotus 9.33 6009 80% 7511 downrated 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.