Base difficulty: Level 26 edit
Level distribution for noun (path_infrastructure): 24: 1 26: 8 115: 2 135: 1 219: 3 255: 9 405: 2 1020: 2 1050: 1 1399: 10
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Tier Signals
| Source | Tier | Rank used |
|---|---|---|
basic_english |
Basic (1 of 2) | 600 |
cambridge_yle |
Movers (2 of 3) | 750 |
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 |
283.37 | 426 | 100% | 348 | 3 |
20th_books |
355.05 | 365 | 100% | 280 | 3 |
wiki_math |
18.48 | 3837 | 100% | 3837 | 1 |
wiki_geography |
678.55 | 456 | 100% | 184 | 3 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
351.45 | 585 | 100% | 376 | 3 |
wiki_arts |
92.83 | 2416 | 100% | 1474 | 2 |
wiki_society |
0.00 | — | — | — | 0 |
wiki_linguistics |
26.33 | 3777 | 100% | 3777 | 1 |
wiki_physical_science |
38.91 | 3310 | 100% | 3310 | 1 |
wiki_history |
124.10 | 2000 | 100% | 1107 | 2 |
early_modern_science |
83.91 | 1747 | 100% | 1289 | 2 |
religious_translated |
114.78 | 1117 | 100% | 861 | 2 |
cooking |
0.00 | — | — | — | 0 |
legal_scotus |
45.54 | 3590 | 100% | 1832 | 3 |
eu_parliament_debates |
194.00 | 743 | 100% | 580 | 2 |
openstax_science |
20.78 | 4975 | 100% | 4975 | 1 |
openstax_society |
85.57 | 2386 | 100% | 1490 | 2 |
wpa_life_histories |
495.21 | 307 | 100% | 225 | 3 |
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.