This is the 12279th most frequent Swedish word.
sek
"SEK" is the abbreviation for the Swedish currency, the Swedish krona.
Here, 'sek' refers to the abbreviation for the Swedish Krona, Sweden's currency.
Jag betalade 100 sek för den här boken.
I paid 100 SEK for this book.
In this sentence, 'sek' is used colloquially to mean 'a second' or a very short amount of time.
Kan du ge mig en sek att tänka?
Can you give me a second to think?
In this context, 'sek' is part of a measurement indicating tempo, where SEK could be misinterpreted but clarified as 'seconds'.