Base Difficulty

Base difficulty: Level 350 edit

Level distribution for adjective (location): 350: 31 1010: 6 1020: 8 1040: 1 1050: 1 1070: 2 1120: 22 1399: 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, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 797 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B1 (3 of 6) 4200

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 17.54 4324 100% 4324 1
20th_books 21.03 5384 100% 3040 2
wiki_math 0.00 — — — 0
wiki_geography 995.46 148 100% 108 2
wiki_biology 542.57 281 100% 220 2
wiki_modern_life 129.33 2046 100% 1141 2
wiki_arts 166.27 1443 100% 830 2
wiki_society 135.93 1800 100% 1033 2
wiki_linguistics 699.92 360 100% 183 2
wiki_physical_science 235.12 1003 100% 619 2
wiki_history 337.99 515 100% 362 2
early_modern_science 174.95 798 100% 634 2
religious_translated 16.24 4682 100% 4682 1
cooking 0.00 — — — 0
legal_scotus 33.38 3200 100% 3200 1
eu_parliament_debates 63.81 2753 100% 1401 2
openstax_science 23.67 4517 100% 4517 1
openstax_society 178.83 893 100% 764 2
wpa_life_histories 53.30 2476 100% 1476 2

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.