Base Difficulty

Base difficulty: Level 22 edit

Level distribution for adverb (specific_time): 22: 5 224: 2

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 54.64 1638 100% 1638 1
20th_books 82.48 1129 100% 1129 1
wiki_math 95.39 1264 100% 1264 1
wiki_geography 364.44 295 100% 295 1
wiki_biology 202.41 637 100% 637 1
wiki_modern_life 313.22 353 100% 353 1
wiki_arts 298.33 356 100% 356 1
wiki_society 247.54 461 100% 461 1
wiki_linguistics 384.00 310 100% 310 1
wiki_physical_science 185.31 776 100% 776 1
wiki_history 199.80 572 100% 572 1
early_modern_science 29.15 3266 100% 3266 1
religious_translated 19.69 3979 100% 3979 1
cooking 47.59 1823 100% 1823 1
legal_scotus 328.74 375 100% 375 1
eu_parliament_debates 758.31 163 100% 163 1
openstax_science 197.45 718 100% 718 1
openstax_society 380.35 322 100% 322 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.