Base Difficulty

Base difficulty: Level 1399 edit

Level distribution for noun (small_movable_object): 2: 8 19: 5 20: 1 24: 1 25: 1 27: 1 29: 11 109: 1 194: 13 195: 25 199: 23 200: 21 278: 2 405: 1 416: 1 1000: 1 1040: 8 1078: 4 1090: 2 1120: 2 1201: 3 1202: 7 1205: 8 1206: 3 1208: 4 1209: 1 1210: 1 1211: 3 1214: 1 1215: 4 1216: 2 1217: 6 1218: 1 1219: 1 1220: 3 1221: 2 1223: 3 1225: 1 1226: 1 1399: 12

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: 960 (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 69.31 706 36% 1340 downrated 2
20th_books 36.72 1315 36% 2412 downrated 2
wiki_math 511.51 214 57% 254 downrated 3
wiki_geography 21.58 3601 57% 6302 downrated 1
wiki_biology 64.11 1621 57% 2158 downrated 2
wiki_modern_life 194.71 528 36% 653 downrated 2
wiki_arts 189.00 494 57% 653 downrated 2
wiki_society 168.32 663 57% 768 downrated 2
wiki_linguistics 325.49 194 36% 375 downrated 2
wiki_physical_science 514.75 212 36% 222 downrated 3
wiki_history 65.37 1713 57% 2088 downrated 2
early_modern_science 171.16 463 36% 643 downrated 2
religious_translated 108.13 738 36% 978 downrated 2
cooking 0.00 — — — 0
legal_scotus 51.46 1297 36% 2339 downrated 2
eu_parliament_debates 14.14 3912 36% 4766 downrated 2
openstax_science 407.33 229 36% 283 downrated 3
openstax_society 98.26 1104 57% 1437 downrated 2
wpa_life_histories 12.06 3239 36% 5509 downrated 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.