Base Difficulty

Base difficulty: Level 1205 edit

Level distribution for verb (possession): 3: 3 7: 2 10: 1 20: 3 175: 14 254: 1 309: 1 314: 1 360: 1 406: 1 415: 3 455: 1 475: 3 1070: 1 1205: 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 Starters (1 of 3) 325

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 2.12 1209 3% 20000 capped 1
20th_books 1.83 1394 3% 20000 capped 1
wiki_math 1.35 2037 3% 8000 capped 1
wiki_geography 0.00 — — — 0
wiki_biology 0.00 — — — 0
wiki_modern_life 2.57 1594 3% 10000 capped 1
wiki_arts 1.79 2087 3% 10000 capped 1
wiki_society 1.34 2837 3% 11000 capped 1
wiki_linguistics 0.67 3817 3% 9000 capped 1
wiki_physical_science 0.00 — — — 0
wiki_history 1.16 3021 3% 9000 capped 1
early_modern_science 2.59 1255 3% 10400 capped 1
religious_translated 3.29 886 3% 10400 capped 1
cooking 2.66 1194 3% 5200 capped 1
legal_scotus 1.88 1817 3% 20000 capped 1
eu_parliament_debates 4.93 683 3% 11000 capped 1
openstax_science 1.74 2150 3% 11000 capped 1
openstax_society 1.75 2209 3% 11000 capped 1
wpa_life_histories 1.52 1717 3% 20000 capped 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.