This is the 7701st most frequent Polish word.
mks
"MKS" in Polish often refers to a municipal transport company (Miejski Komunikacyjny System) or sports clubs (Miejski Klub Sportowy). Context determines its meaning.
Here, 'MKS' refers to a sports club (Miejski Klub Sportowy).
MKS w naszym mieście organizuje turniej siatkówki.
The Sports Club in our city is organizing a volleyball tournament.
'MKS' in this context is the name or abbreviation of a sports club participating in a match.
Podczas meczu MKS pokonał drużynę przeciwną.
During the match, MKS defeated the opposing team.
Here, 'MKS' is explicitly defined as an abbreviation for a Municipal Sports Club.