Base difficulty: Level 205 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 |
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 |
329.82 | 656 | 80% | 286 | 4 |
20th_books |
404.53 | 610 | 100% | 248 | 4 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
0.00 | — | — | — | 0 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
59.51 | 3249 | 80% | 2367 | 2 |
wiki_arts |
26.97 | 3945 | 80% | 4931 downrated | 1 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
0.00 | — | — | — | 0 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
0.00 | — | — | — | 0 |
early_modern_science |
129.87 | 1694 | 80% | 846 | 3 |
religious_translated |
94.60 | 1324 | 80% | 974 | 3 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
5.18 | 8784 | 80% | 10980 downrated | 1 |
eu_parliament_debates |
23.53 | 4548 | 80% | 2695 | 2 |
openstax_science |
15.28 | 5268 | 80% | 6585 downrated | 1 |
openstax_society |
103.00 | 2678 | 80% | 1193 | 3 |
wpa_life_histories |
269.08 | 576 | 80% | 367 | 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.