Base Difficulty

Base difficulty: Level 18 edit

Level distribution for preposition (preposition_other): 6: 8 10: 7 11: 5 14: 1 18: 4 23: 2 226: 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

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 172.38 571 100% 571 1
20th_books 198.77 530 100% 530 1
wiki_math 173.41 772 100% 772 1
wiki_geography 125.57 1035 100% 1035 1
wiki_biology 225.31 559 100% 559 1
wiki_modern_life 132.12 1072 100% 1072 1
wiki_arts 112.70 1173 100% 1173 1
wiki_society 99.70 1372 100% 1372 1
wiki_linguistics 346.66 345 100% 345 1
wiki_physical_science 130.17 1107 100% 1107 1
wiki_history 99.62 1274 100% 1274 1
early_modern_science 204.63 522 100% 522 1
religious_translated 152.81 703 100% 703 1
cooking 105.43 1105 100% 1105 1
legal_scotus 0.00 — — — 0
eu_parliament_debates 28.38 2924 100% 2924 1
openstax_science 100.85 1362 100% 1362 1
openstax_society 54.46 2458 100% 2458 1
wpa_life_histories 204.07 534 100% 534 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.