Base Difficulty

Base difficulty: Level 406 edit

Level distribution for noun (small_movable_object): 2: 13 19: 5 20: 4 27: 1 29: 12 194: 16 195: 29 199: 29 200: 27 405: 4 406: 8 416: 1 1000: 1 1040: 8 1090: 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

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1299 for level
Frequency and Tier Signals
Combined Frequency Rank: — (run python -m storage.admin --calc-ranks to populate)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
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 6.73 648 3% 13948 downrated 2
20th_books 5.69 773 3% 16653 downrated 2
wiki_math 3.39 1497 3% 8000 capped 2
wiki_geography 1.00 3407 3% 9000 capped 1
wiki_biology 1.62 2431 3% 9000 capped 1
wiki_modern_life 12.37 577 3% 9931 downrated 2
wiki_arts 14.38 448 3% 7867 downrated 2
wiki_society 1.88 3629 3% 11000 capped 2
wiki_linguistics 1.46 3185 3% 9000 capped 2
wiki_physical_science 2.23 3254 3% 8000 capped 2
wiki_history 5.24 1371 3% 9000 capped 2
early_modern_science 11.75 374 3% 9243 downrated 2
religious_translated 8.00 697 3% 10400 capped 2
cooking 54.78 132 3% 2954 downrated 2
legal_scotus 0.66 5334 3% 20000 capped 2
eu_parliament_debates 1.64 2144 3% 11000 capped 2
openstax_science 3.36 1970 3% 11000 capped 2
openstax_society 3.07 2149 3% 11000 capped 2
wpa_life_histories 8.06 557 3% 12843 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.