Base Difficulty

Base difficulty: Level 1212 edit

Level distribution for noun (rule_defined_event): 405: 29 406: 1 1200: 16 1201: 15 1202: 13 1203: 8 1204: 19 1206: 17 1207: 14 1208: 1 1209: 9 1210: 10 1211: 6 1212: 12 1213: 9 1214: 9 1215: 15 1216: 2 1218: 10 1219: 3 1220: 15 1221: 6 1222: 3 1224: 3 1225: 4 1226: 1

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: 3880 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Extended (2 of 2) 1600
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 0.00 — — — 0
20th_books 0.00 — — — 0
wiki_math 36.85 2480 100% 2480 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 52.80 2776 100% 2776 1
wiki_arts 0.00 — — — 0
wiki_society 53.46 2605 100% 2605 1
wiki_linguistics 29.90 3459 100% 3459 1
wiki_physical_science 104.19 1403 100% 1403 1
wiki_history 45.67 2982 100% 2982 1
early_modern_science 16.70 5170 100% 5170 1
religious_translated 20.50 3966 100% 3966 1
cooking 0.00 — — — 0
legal_scotus 24.28 3989 100% 3989 1
eu_parliament_debates 14.23 4598 100% 4598 1
openstax_science 88.05 1565 100% 1565 1
openstax_society 22.72 4774 100% 4774 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.