pii.
silicon (element, symbol Si)
Meaning & usage
silicon (element, symbol Si)
flint (hard, fine-grained quartz or a piece of it)
Where this word comes from
Ellipsis of piikivi (“flint”), which is derived from pii (“tooth, prong”) (etymology 2) + kivi (“stone”).
pi (Greek letter)
pi (constant 3.14159…)
Where this word comes from
< Ancient Greek πεῖ (peî) Greek letter Ππ Previous: omikron Next: rhoo
thorn, prong, tooth or similar element e.g. in a plant, a saw or a rake
dent in a reed
Where this word comes from
From Proto-Finnic *pii (“tooth”), from Proto-Finno-Ugric *piŋe (“tooth”). Cognates include Ingrian pii (“spike”), Erzya пей (pej, “tooth”) and Hungarian fog (“tooth”).
lying hove-to; the position of a sailing vessel, when it is set so that its bow points steadily to the wind
olla piissä
asettua piihin
Where this word comes from
Borrowed from Swedish bi (literally “by”).
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.