Base Difficulty

Base difficulty: Level 310 edit

Level distribution for noun (human): 5: 9 19: 1 310: 46 330: 2 340: 1 370: 1 380: 1 390: 1 400: 2 405: 1 1000: 4 1010: 1 1020: 3 1030: 2 1040: 5 1050: 1 1060: 8 1070: 8 1120: 7 1130: 5

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
basic_english Basic (1 of 2) 600
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 74.68 1430 100% 1133 2
20th_books 75.43 1211 100% 1211 1
wiki_math 0.00 — — — 0
wiki_geography 139.82 1124 100% 888 2
wiki_biology 0.00 — — — 0
wiki_modern_life 29.03 4536 100% 4536 1
wiki_arts 63.95 2070 100% 2070 1
wiki_society 90.89 1496 100% 1496 1
wiki_linguistics 30.88 3171 100% 3171 1
wiki_physical_science 0.00 — — — 0
wiki_history 187.42 746 100% 634 2
early_modern_science 106.64 1069 100% 1069 1
religious_translated 319.79 419 100% 327 2
cooking 45.32 1858 100% 1858 1
legal_scotus 24.15 3836 100% 3836 1
eu_parliament_debates 9.06 5396 100% 5396 1
openstax_science 0.00 — — — 0
openstax_society 110.03 1680 100% 1186 2
wpa_life_histories 66.31 1432 100% 1432 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.