Base Difficulty

Base difficulty: Level 5 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: 1012 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
cambridge_yle Flyers (3 of 3) 1200
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 189.62 794 100% 474 4
20th_books 140.72 1083 100% 618 4
wiki_math 0.00 — — — 0
wiki_geography 278.39 922 100% 492 3
wiki_biology 32.47 3829 100% 3829 1
wiki_modern_life 0.00 — — — 0
wiki_arts 211.44 1956 100% 648 4
wiki_society 69.68 3455 100% 1939 2
wiki_linguistics 0.00 — — — 0
wiki_physical_science 0.00 — — — 0
wiki_history 402.09 742 100% 325 4
early_modern_science 166.68 1218 100% 671 3
religious_translated 83.04 1802 100% 1142 2
cooking 0.00 — — — 0
legal_scotus 61.32 3526 100% 1368 4
eu_parliament_debates 95.09 2012 100% 955 3
openstax_science 19.12 5271 100% 5271 1
openstax_society 73.58 3708 100% 1519 3
wpa_life_histories 265.31 685 100% 372 4

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.