/ˈkoskɑ/, [ˈko̞s̠kɑ̝]
AlkuperäProto-Finnic *kos + -ka; equivalent to ko- + -s + -ka; the s-lative singular of ko- (from Proto-Uralic *ko-) with the interrogative particle -ka. Compare dialectal Erzya [script needed] (kosk), [script needed] (kosko, “when”).
- subordinatingbecause, since
“Koska et soittanut, lähdimme ilman sinua.” — Since you didn't call, we left without you.
“Koska meillä on joulu, juhla armas lapsien, eikä rasita koulu, syyt’ on olla iloinen!” — Because we have the midwinter festival now, ...
“Koska sä oot ylivoimainen.” — Because you are overwhelming.
- not-comparablesynonym of milloin (“when, at what time”)
“Koska he tulevat?” — When will they arrive?
“Tiedätkö, koska he tulevat?” — Do you know when they'll arrive?
- nonstandard, rare, slangsynonym of takia (“because of”) (as a calque of English prepositional because)
“Miks sä oot kotona? Koska kuume.” — Why are you at home? Because fever.