This is the 118th most frequent Czech word.
několika
"Several" or "a few."
Here, 'několik' means 'several' and is used to refer to an indefinite but small number of people.
Na setkání bylo několik účastníků.
There were several participants at the meeting.
Here, 'několik' means 'a few' or 'several' and indicates an indefinite but limited number of days.
Půjčil jsem si knihu na několik dní.
I borrowed a book for several days.
In this case, 'několik' expresses an indefinite but limited number of interesting locations observed during a journey.