Base difficulty: Level 214 edit
Level distribution for verb (perception): 5: 1 8: 2 185: 1 205: 1 214: 12 230: 1 265: 1 279: 1 455: 1 1040: 1 1399: 4
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cambridge_yle |
Flyers (3 of 3) | 1200 |
cefr |
B1 (3 of 6) | 4200 |
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 |
41.21 | 2050 | 50% | 1834 | 3 |
20th_books |
73.30 | 1294 | 50% | 1108 | 4 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
67.47 | 1041 | 50% | 2082 downrated | 1 |
wiki_modern_life |
0.00 | — | — | — | 0 |
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 |
26.01 | 2137 | 50% | 4274 downrated | 1 |
religious_translated |
12.29 | 3484 | 50% | 6968 downrated | 1 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
0.00 | — | — | — | 0 |
eu_parliament_debates |
0.00 | — | — | — | 0 |
openstax_science |
21.20 | 2929 | 50% | 5858 downrated | 1 |
openstax_society |
0.00 | — | — | — | 0 |
wpa_life_histories |
31.03 | 1764 | 50% | 2879 downrated | 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.