Base Difficulty

Base difficulty: Level 26 edit

Level distribution for verb (directional_movement): 5: 6 23: 4 26: 3 28: 2 120: 1 135: 2 145: 5 210: 1 254: 1 300: 1 330: 2 415: 1 460: 1 470: 9 1040: 1 1050: 2 1120: 1 1399: 18

Per-Language Difficulty Overrides

No difficulty overrides set. The base difficulty level will be used for all languages.

Add Difficulty Override
-1 to exclude, 1-1399 for level
Frequency and Tier Signals
Combined Frequency Rank: 1137 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Starters (1 of 3) 325
cefr A1 (1 of 6) 800

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 127.89 2042 100% 671 4
20th_books 131.24 1775 100% 641 4
wiki_math 0.00 — — — 0
wiki_geography 29.47 4428 100% 4428 1
wiki_biology 0.00 — — — 0
wiki_modern_life 93.84 2560 100% 1538 2
wiki_arts 0.00 — — — 0
wiki_society 0.00 — — — 0
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 0.00 — — — 0
early_modern_science 0.00 — — — 0
religious_translated 102.68 2025 100% 894 3
cooking 0.00 — — — 0
legal_scotus 10.72 6648 100% 6648 1
eu_parliament_debates 0.00 — — — 0
openstax_science 0.00 — — — 0
openstax_society 48.32 4464 100% 2299 2
wpa_life_histories 787.44 372 100% 138 5

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.