Base Difficulty

Base difficulty: Level 20 edit

Level distribution for verb (possession): 3: 3 7: 2 10: 1 20: 3 175: 14 254: 1 309: 1 314: 1 360: 1 406: 1 415: 3 455: 1 475: 3 1070: 1 1205: 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, 1-1299 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 Flyers (3 of 3) 1200

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 45.39 1163 31% 1963 downrated 2
20th_books 72.92 802 31% 1298 downrated 2
wiki_math 0.00 — — — 0
wiki_geography 27.81 2425 31% 4166 downrated 2
wiki_biology 41.48 1674 50% 3348 downrated 1
wiki_modern_life 30.82 2740 31% 4502 downrated 2
wiki_arts 26.76 2703 31% 4599 downrated 2
wiki_society 33.43 2943 31% 3976 downrated 2
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 88.58 440 31% 1209 downrated 2
early_modern_science 27.52 2272 31% 3625 downrated 2
religious_translated 20.77 2281 31% 3996 downrated 2
cooking 0.00 — — — 0
legal_scotus 32.37 2336 31% 3365 downrated 2
eu_parliament_debates 47.42 1352 31% 2255 downrated 2
openstax_science 25.75 3515 50% 4521 downrated 2
openstax_society 103.54 1017 50% 1361 downrated 2
wpa_life_histories 110.78 562 31% 935 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.