Base Difficulty

Base difficulty: Level 5 edit

Level distribution for verb (physical_action): 5: 8 7: 3 8: 4 10: 5 11: 1 12: 1 19: 1 22: 1 23: 1 24: 2 25: 4 27: 3 28: 2 29: 4 109: 1 135: 1 140: 3 160: 3 165: 1 170: 1 172: 1 179: 2 185: 1 190: 2 194: 1 196: 1 204: 5 205: 3 215: 1 235: 1 254: 1 279: 4 299: 1 300: 1 309: 2 311: 1 314: 2 319: 41 330: 3 340: 1 370: 1 400: 1 405: 4 406: 3 410: 2 415: 8 455: 1 475: 9 485: 1 1020: 1 1040: 3 1070: 3 1090: 12 1110: 1 1120: 2 1201: 1 1205: 1 1210: 1 1221: 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 692.08 230 100% 159 2
20th_books 815.22 201 100% 146 2
wiki_math 18.62 3750 100% 3750 1
wiki_geography 77.77 2899 100% 1539 2
wiki_biology 49.99 2689 100% 2689 1
wiki_modern_life 75.06 1946 100% 1946 1
wiki_arts 139.94 1291 100% 939 2
wiki_society 78.37 2540 100% 1665 2
wiki_linguistics 80.91 1476 100% 1476 1
wiki_physical_science 0.00 — — — 0
wiki_history 117.30 2117 100% 1093 2
early_modern_science 178.48 973 100% 628 2
religious_translated 470.46 434 100% 226 2
cooking 666.61 240 100% 240 1
legal_scotus 114.90 1342 100% 1043 2
eu_parliament_debates 123.99 1092 100% 880 2
openstax_science 26.56 4142 100% 4142 1
openstax_society 101.90 2295 100% 1289 2
wpa_life_histories 403.79 495 100% 268 2

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.