Base Difficulty

Base difficulty: Level 10 edit

Level distribution for preposition (preposition_other): 6: 4 10: 10 11: 5 13: 2 14: 1 15: 1 18: 4 226: 3 1080: 1 1120: 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 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 28740.01 4 100% 4 1
20th_books 28433.29 3 100% 3 1
wiki_math 21383.71 7 100% 7 1
wiki_geography 23669.55 5 100% 5 1
wiki_biology 26104.57 5 100% 5 1
wiki_modern_life 28660.21 6 100% 6 1
wiki_arts 25583.66 6 100% 6 1
wiki_society 29191.85 5 100% 5 1
wiki_linguistics 23070.61 6 100% 6 1
wiki_physical_science 24609.26 6 100% 6 1
wiki_history 31412.14 5 100% 5 1
early_modern_science 27208.77 4 100% 4 1
religious_translated 27417.27 4 100% 4 1
cooking 20282.14 6 100% 6 1
legal_scotus 33806.53 3 100% 3 1
eu_parliament_debates 36720.57 3 100% 3 1
openstax_science 26605.37 5 100% 5 1
openstax_society 32012.40 4 100% 4 1
wpa_life_histories 0.00 — — — 0

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.