Base Difficulty

Base difficulty: Level 8 edit

Level distribution for noun (body_part): 3: 14 8: 14 15: 10 160: 40 1010: 22 1060: 1 1090: 2

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 0.00 — — — 0
20th_books 1647.84 75 100% 75 1
wiki_math 173.32 771 100% 771 1
wiki_geography 303.87 374 100% 374 1
wiki_biology 523.58 197 100% 197 1
wiki_modern_life 552.15 173 100% 173 1
wiki_arts 448.69 224 100% 224 1
wiki_society 296.90 369 100% 369 1
wiki_linguistics 383.43 311 100% 311 1
wiki_physical_science 0.00 — — — 0
wiki_history 435.66 212 100% 212 1
early_modern_science 362.12 295 100% 295 1
religious_translated 0.00 — — — 0
cooking 342.17 444 100% 444 1
legal_scotus 155.94 833 100% 833 1
eu_parliament_debates 300.25 415 100% 415 1
openstax_science 383.28 322 100% 322 1
openstax_society 314.01 405 100% 405 1
wpa_life_histories 1576.03 90 100% 90 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.