This is the 15240th most frequent Polish word.
siedmio
The Polish word "siedmio" is a prefix meaning "seven" or "of seven."
The prefix 'siedmio-' is combined with 'dniowe' to indicate a duration related to seven days.
W tym tygodniu mam siedmiodniowe wakacje.
This week, I have a seven-day vacation.
The prefix 'siedmio-' with 'letni' denotes an age of seven years.
Mój siedmioletni syn właśnie zaczął chodzić do szkoły.
My seven-year-old son has just started school.
The prefix 'siedmio-' attached to 'osobowy' specifies a capacity suitable for seven persons.