Base Difficulty

Base difficulty: Level 405 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: 6251 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Starters (1 of 3) 325
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 0.00 — — — 0
20th_books 1.89 6501 20% 20000 capped 1
wiki_math 0.00 — — — 0
wiki_geography 54.79 451 20% 2255 downrated 1
wiki_biology 0.00 — — — 0
wiki_modern_life 26.92 1063 20% 5315 downrated 1
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 4.08 4454 20% 9000 capped 1
wiki_physical_science 0.00 — — — 0
wiki_history 8.07 3316 20% 9000 capped 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 2.51 6020 20% 20000 capped 1
eu_parliament_debates 5.74 3005 20% 11000 capped 1
openstax_science 0.00 — — — 0
openstax_society 0.00 — — — 0
wpa_life_histories 4.48 3540 20% 17700 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.