Base Difficulty

Base difficulty: Level 309 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: 8267 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cefr B2 (4 of 6) 6900

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 14.77 2857 50% 5714 downrated 1
20th_books 3.26 8358 50% 16716 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 16.93 3969 50% 7938 downrated 1
wiki_biology 0.00 — — — 0
wiki_modern_life 36.23 3253 50% 3857 downrated 2
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 20.27 3298 50% 6596 downrated 1
early_modern_science 0.00 — — — 0
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 0.00 — — — 0
eu_parliament_debates 0.00 — — — 0
openstax_science 0.00 — — — 0
openstax_society 27.26 2451 50% 4902 downrated 1
wpa_life_histories 8.12 4232 50% 8464 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.