Base difficulty: Level 11 edit
Level distribution for preposition (preposition_other): 6: 10 10: 7 11: 8 14: 1 18: 4 23: 2 226: 5 1080: 1 1120: 1
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
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 |
545.26 | 216 | 100% | 216 | 1 |
20th_books |
550.88 | 219 | 100% | 219 | 1 |
wiki_math |
48.51 | 2050 | 100% | 2050 | 1 |
wiki_geography |
451.27 | 240 | 100% | 240 | 1 |
wiki_biology |
277.46 | 447 | 100% | 447 | 1 |
wiki_modern_life |
447.20 | 214 | 100% | 214 | 1 |
wiki_arts |
425.52 | 241 | 100% | 241 | 1 |
wiki_society |
739.06 | 122 | 100% | 122 | 1 |
wiki_linguistics |
104.26 | 1245 | 100% | 1245 | 1 |
wiki_physical_science |
192.27 | 753 | 100% | 753 | 1 |
wiki_history |
1223.57 | 72 | 100% | 72 | 1 |
early_modern_science |
338.30 | 317 | 100% | 317 | 1 |
religious_translated |
986.60 | 131 | 100% | 131 | 1 |
cooking |
65.36 | 1498 | 100% | 1498 | 1 |
legal_scotus |
1181.93 | 85 | 100% | 85 | 1 |
eu_parliament_debates |
803.93 | 146 | 100% | 146 | 1 |
openstax_science |
261.83 | 524 | 100% | 524 | 1 |
openstax_society |
660.15 | 164 | 100% | 164 | 1 |
wpa_life_histories |
212.20 | 516 | 100% | 516 | 1 |
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.