sekunnin
Sekunnin is the genitive singular form of sekunti, the Finnish word for the unit of time equal to one second. It is used to indicate possession or association with a second, and appears in time expressions such as sekunnin kuluttua (“in a second”), sekunnin aikana (“during the second”), or kahden sekunnin päästä (“two seconds later”). In compound phrases, sekunnin often acts as a descriptive element, for example kolmen sekunnin ajan (“for three seconds”) or kahden sekunnin välein (“at two-second intervals”).
Sekunti is the SI base unit of time. Its symbol is s. The current definition ties the
Etymology and linguistic notes: sekunti originates from Swedish sekund, which itself comes from the Latin secundus,
Usage overview: in ordinary Finnish, sekunti is used for counting time and durations (one second, two seconds,