Base Difficulty

Base difficulty: Level 406 edit

Level distribution for noun (sports_game_equipment): 29: 1 199: 1 200: 2 205: 3 210: 2 330: 3 405: 4 406: 8 460: 1 1078: 3 1399: 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, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 9334 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
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 6.64 667 3% 14348 downrated 2
20th_books 5.54 820 3% 17655 downrated 2
wiki_math 3.33 1564 3% 8000 capped 2
wiki_geography 0.95 4116 3% 9000 capped 1
wiki_biology 1.62 2453 3% 9000 capped 1
wiki_modern_life 12.35 593 3% 10000 capped 2
wiki_arts 14.15 478 3% 8374 downrated 2
wiki_society 1.80 3998 3% 11000 capped 2
wiki_linguistics 0.86 3501 3% 9000 capped 1
wiki_physical_science 2.22 3346 3% 8000 capped 2
wiki_history 5.07 1464 3% 9000 capped 2
early_modern_science 11.71 376 3% 9366 downrated 2
religious_translated 7.84 726 3% 10400 capped 2
cooking 54.28 133 3% 2997 downrated 2
legal_scotus 0.64 5722 3% 20000 capped 2
eu_parliament_debates 1.37 2154 3% 11000 capped 1
openstax_science 3.37 1970 3% 11000 capped 2
openstax_society 3.08 2137 3% 11000 capped 2
wpa_life_histories 7.89 568 3% 13222 downrated 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.