Base Difficulty

Base difficulty: Level 1206 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: 4267 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
cefr A2 (2 of 6) 2100

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 1.23 3712 3% 20000 capped 2
20th_books 0.92 3850 3% 20000 capped 2
wiki_math 22.57 192 3% 5869 downrated 2
wiki_geography 56.61 49 3% 1497 downrated 2
wiki_biology 20.36 172 3% 5254 downrated 2
wiki_modern_life 39.09 67 3% 2159 downrated 2
wiki_arts 66.67 48 3% 1487 downrated 2
wiki_society 44.63 61 3% 1872 downrated 2
wiki_linguistics 61.36 64 3% 1863 downrated 2
wiki_physical_science 16.75 240 3% 7341 downrated 2
wiki_history 58.20 48 3% 1522 downrated 2
early_modern_science 7.77 667 3% 10400 capped 2
religious_translated 1.73 2472 3% 10400 capped 2
cooking 0.00 — — — 0
legal_scotus 2.98 1558 3% 20000 capped 2
eu_parliament_debates 2.16 1750 3% 11000 capped 2
openstax_science 3.05 1987 3% 11000 capped 2
openstax_society 19.51 226 3% 6164 downrated 2
wpa_life_histories 0.62 3440 3% 20000 capped 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.