Base Difficulty

Base difficulty: Level 19 edit

Level distribution for noun (communication_information): 5: 1 19: 6 295: 28 370: 1 400: 36 420: 1 440: 32 460: 1 470: 2 1000: 8 1040: 1 1060: 2 1070: 10 1080: 1 1110: 16 1120: 2 1207: 1 1220: 1 1399: 83

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: 165 (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 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 929.51 228 100% 121 2
20th_books 800.76 273 100% 141 2
wiki_math 651.35 409 100% 212 2
wiki_geography 258.50 616 100% 496 2
wiki_biology 501.52 257 100% 226 2
wiki_modern_life 533.29 231 100% 197 2
wiki_arts 663.72 282 100% 162 2
wiki_society 797.59 171 100% 124 2
wiki_linguistics 6167.44 34 100% 17 3
wiki_physical_science 372.00 509 100% 377 2
wiki_history 313.41 749 100% 417 2
early_modern_science 299.57 652 100% 372 2
religious_translated 1592.07 125 100% 79 2
cooking 40.57 2037 100% 2037 1
legal_scotus 526.61 412 100% 239 2
eu_parliament_debates 416.25 395 100% 296 2
openstax_science 225.25 1127 100% 621 2
openstax_society 384.84 561 100% 362 2
wpa_life_histories 393.48 534 100% 275 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.