Base Difficulty

Base difficulty: Level 225 edit

Level distribution for adverb (relative_time): 6: 3 9: 3 22: 5 225: 9 1030: 1 1399: 4

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 2126 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 17.08 2554 50% 5108 downrated 1
20th_books 18.19 2315 50% 4630 downrated 1
wiki_math 65.25 1011 50% 2022 downrated 1
wiki_geography 52.67 1308 50% 2616 downrated 1
wiki_biology 74.87 919 50% 1838 downrated 1
wiki_modern_life 77.83 886 50% 1772 downrated 1
wiki_arts 159.57 336 50% 672 downrated 1
wiki_society 84.09 785 50% 1570 downrated 1
wiki_linguistics 125.76 526 50% 1052 downrated 1
wiki_physical_science 60.24 1222 50% 2444 downrated 1
wiki_history 135.15 419 50% 838 downrated 1
early_modern_science 30.94 1839 50% 3678 downrated 1
religious_translated 12.00 3536 50% 7072 downrated 1
cooking 0.00 — — — 0
legal_scotus 104.33 611 50% 1222 downrated 1
eu_parliament_debates 58.49 1022 50% 2044 downrated 1
openstax_science 77.51 919 50% 1838 downrated 1
openstax_society 122.98 562 50% 1124 downrated 1
wpa_life_histories 16.69 2608 50% 5216 downrated 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.