Base Difficulty

Base difficulty: Level 221 edit

Level distribution for noun (concept_idea): 19: 2 20: 3 26: 1 27: 1 221: 29 270: 31 274: 37 275: 31 280: 29 380: 2 1000: 1 1030: 1 1060: 5 1070: 6 1110: 7 1120: 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

No lemma-tier assignment found yet.

Corpus Frequency
Corpus Freq (per M) Best form Share Zipf rank Forms
19th_books 126.51 741 100% 741 1
20th_books 88.46 1050 100% 1050 1
wiki_math 160.53 832 100% 832 1
wiki_geography 107.46 1208 100% 1208 1
wiki_biology 169.82 782 100% 782 1
wiki_modern_life 304.99 361 100% 361 1
wiki_arts 219.41 541 100% 541 1
wiki_society 261.02 424 100% 424 1
wiki_linguistics 130.24 947 100% 947 1
wiki_physical_science 0.00 — — — 0
wiki_history 159.88 747 100% 747 1
early_modern_science 392.05 274 100% 274 1
religious_translated 104.17 983 100% 983 1
cooking 79.31 1335 100% 1335 1
legal_scotus 619.58 162 100% 162 1
eu_parliament_debates 231.16 534 100% 534 1
openstax_science 326.45 390 100% 390 1
openstax_society 257.97 517 100% 517 1
wpa_life_histories 32.70 2513 100% 2513 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.