Base difficulty: Level 10 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 |
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 |
491.32 | 235 | 100% | 235 | 1 |
20th_books |
486.09 | 242 | 100% | 242 | 1 |
wiki_math |
1669.96 | 64 | 100% | 64 | 1 |
wiki_geography |
2126.70 | 35 | 100% | 35 | 1 |
wiki_biology |
1621.46 | 55 | 100% | 55 | 1 |
wiki_modern_life |
1529.67 | 57 | 100% | 57 | 1 |
wiki_arts |
1268.63 | 68 | 100% | 68 | 1 |
wiki_society |
1610.22 | 50 | 100% | 50 | 1 |
wiki_linguistics |
2071.76 | 51 | 100% | 51 | 1 |
wiki_physical_science |
1972.18 | 47 | 100% | 47 | 1 |
wiki_history |
1384.99 | 63 | 100% | 63 | 1 |
early_modern_science |
1061.60 | 100 | 100% | 100 | 1 |
religious_translated |
449.07 | 259 | 100% | 259 | 1 |
cooking |
359.46 | 429 | 100% | 429 | 1 |
legal_scotus |
884.22 | 121 | 100% | 121 | 1 |
eu_parliament_debates |
1242.70 | 93 | 100% | 93 | 1 |
openstax_science |
1759.23 | 55 | 100% | 55 | 1 |
openstax_society |
1469.52 | 70 | 100% | 70 | 1 |
wpa_life_histories |
324.91 | 352 | 100% | 352 | 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.