Base Difficulty

Base difficulty: Level 145 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: 524 (weighted harmonic mean of corpus + tier signals; lower = more common)
Tier Signals
Source Tier Rank used
basic_english Basic (1 of 2) 600
cambridge_yle Movers (2 of 3) 750
cefr A2 (2 of 6) 2100

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 367.50 465 100% 260 5
20th_books 405.74 467 100% 244 5
wiki_math 71.60 2783 100% 1101 3
wiki_geography 135.74 1003 100% 1003 1
wiki_biology 54.12 2515 100% 2515 1
wiki_modern_life 163.16 1555 100% 880 3
wiki_arts 136.44 1254 100% 997 2
wiki_society 134.94 1299 100% 1021 2
wiki_linguistics 40.84 2801 100% 2801 1
wiki_physical_science 0.00 — — — 0
wiki_history 553.65 217 100% 187 3
early_modern_science 221.36 763 100% 496 3
religious_translated 746.58 226 100% 155 5
cooking 131.84 1380 100% 753 2
legal_scotus 75.08 2969 100% 1217 4
eu_parliament_debates 198.99 1364 100% 520 4
openstax_science 163.75 2474 100% 756 4
openstax_society 218.26 1055 100% 623 3
wpa_life_histories 501.48 337 100% 213 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.