Base Difficulty

Base difficulty: Level 26 edit

Level distribution for noun (path_infrastructure): 26: 7 255: 14 405: 3 1020: 2 1050: 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

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 50.32 1710 97% 1761 downrated 1
20th_books 69.70 1284 97% 1323 downrated 1
wiki_math 0.00 — — — 0
wiki_geography 170.36 714 97% 735 downrated 1
wiki_biology 0.00 — — — 0
wiki_modern_life 131.86 1034 97% 1065 downrated 1
wiki_arts 85.54 1500 97% 1545 downrated 1
wiki_society 20.34 5457 97% 5621 downrated 1
wiki_linguistics 0.00 — — — 0
wiki_physical_science 28.64 3937 97% 4055 downrated 1
wiki_history 36.99 3230 97% 3327 downrated 1
early_modern_science 15.64 5001 97% 5151 downrated 1
religious_translated 23.71 3381 97% 3482 downrated 1
cooking 0.00 — — — 0
legal_scotus 6.06 8356 97% 8607 downrated 1
eu_parliament_debates 15.22 4045 97% 4166 downrated 1
openstax_science 37.45 3145 97% 3239 downrated 1
openstax_society 22.40 4701 97% 4842 downrated 1
wpa_life_histories 105.00 921 97% 949 downrated 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.