Base Difficulty

Base difficulty: Level 18 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

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 171.94 575 100% 575 1
20th_books 198.29 532 100% 532 1
wiki_math 173.32 774 100% 774 1
wiki_geography 125.46 1036 100% 1036 1
wiki_biology 225.22 559 100% 559 1
wiki_modern_life 131.70 1080 0% 1080 1
wiki_arts 112.60 1174 0% 1174 1
wiki_society 99.64 1373 100% 1373 1
wiki_linguistics 346.38 347 100% 347 1
wiki_physical_science 130.10 1109 100% 1109 1
wiki_history 99.52 1278 100% 1278 1
early_modern_science 204.08 524 100% 524 1
religious_translated 152.21 703 100% 703 1
cooking 105.37 1101 100% 1101 1
legal_scotus 132.41 973 100% 973 1
eu_parliament_debates 28.36 2922 100% 2922 1
openstax_science 100.80 1362 100% 1362 1
openstax_society 54.40 2462 100% 2462 1
wpa_life_histories 203.95 534 100% 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.