Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (group_people): 309: 19 330: 1 405: 2 410: 1 430: 1 1000: 1 1010: 1 1030: 2 1060: 1 1070: 1 1080: 1 1120: 4 1207: 2 1218: 3 1399: 22

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: 241 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
cambridge_yle Starters (1 of 3) 325
cefr A1 (1 of 6) 800

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 315.54 197 50% 372 downrated 3
20th_books 506.99 131 50% 249 downrated 3
wiki_math 67.95 980 50% 1960 downrated 1
wiki_geography 758.77 58 50% 112 downrated 2
wiki_biology 218.82 270 50% 514 downrated 2
wiki_modern_life 429.51 105 50% 208 downrated 2
wiki_arts 331.45 152 50% 299 downrated 2
wiki_society 956.19 48 50% 92 downrated 3
wiki_linguistics 618.93 91 50% 176 downrated 2
wiki_physical_science 134.80 514 50% 1028 downrated 1
wiki_history 714.62 64 50% 125 downrated 2
early_modern_science 146.11 369 50% 738 downrated 1
religious_translated 711.68 89 50% 172 downrated 3
cooking 69.85 871 50% 1742 downrated 1
legal_scotus 117.55 578 50% 1023 downrated 3
eu_parliament_debates 779.41 78 50% 146 downrated 3
openstax_science 200.40 304 50% 608 downrated 1
openstax_society 1956.27 27 50% 52 downrated 3
wpa_life_histories 728.94 101 50% 193 downrated 3

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.