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 |
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 |
280.34 | 640 | 100% | 342 | 3 |
20th_books |
494.72 | 439 | 100% | 208 | 3 |
wiki_math |
0.00 | — | — | — | 0 |
wiki_geography |
461.63 | 817 | 100% | 291 | 3 |
wiki_biology |
0.00 | — | — | — | 0 |
wiki_modern_life |
150.28 | 2102 | 100% | 965 | 3 |
wiki_arts |
194.59 | 1261 | 100% | 706 | 2 |
wiki_society |
96.56 | 2464 | 100% | 1435 | 2 |
wiki_linguistics |
39.23 | 2883 | 100% | 2883 | 1 |
wiki_physical_science |
0.00 | — | — | — | 0 |
wiki_history |
210.03 | 1329 | 100% | 642 | 3 |
early_modern_science |
83.91 | 2319 | 100% | 1296 | 2 |
religious_translated |
45.68 | 2940 | 100% | 1830 | 2 |
cooking |
93.53 | 1194 | 100% | 1194 | 1 |
legal_scotus |
50.39 | 3689 | 100% | 1706 | 3 |
eu_parliament_debates |
27.09 | 4682 | 100% | 2372 | 2 |
openstax_science |
0.00 | — | — | — | 0 |
openstax_society |
93.01 | 3292 | 100% | 1267 | 3 |
wpa_life_histories |
705.17 | 332 | 100% | 159 | 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.