Base Difficulty

Base difficulty: Level 21 edit

Level distribution for noun (temporal_name): 21: 19 215: 4

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

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 17.50 4151 100% 4151 1
20th_books 11.97 5224 100% 5224 1
wiki_math 0.00 — — — 0
wiki_geography 206.62 581 100% 581 1
wiki_biology 41.64 3135 100% 3135 1
wiki_modern_life 71.05 2058 100% 2058 1
wiki_arts 109.54 1212 100% 1212 1
wiki_society 65.94 2034 100% 2034 1
wiki_linguistics 26.39 3509 100% 3509 1
wiki_physical_science 55.97 2428 100% 2428 1
wiki_history 172.33 685 100% 685 1
early_modern_science 41.43 2488 100% 2488 1
religious_translated 0.00 — — — 0
cooking 0.00 — — — 0
legal_scotus 31.85 3196 100% 3196 1
eu_parliament_debates 143.30 835 100% 835 1
openstax_science 0.00 — — — 0
openstax_society 54.40 2452 100% 2452 1
wpa_life_histories 0.00 — — — 0

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.