This is the 822nd most frequent Polish word.
połowę
"Połowę" means "half" in English.
'połowę' in this sentence refers to dividing something into two equal parts.
Podziel się na połowę z przyjacielem.
Share it in half with a friend.
'połowę' here indicates a specific part that makes up half of the whole item.
Kupiliśmy połowę tortu na przyjęcie.
We bought half the cake for the party.
In this usage, 'połowę' refers to half the measurement of distance in terms of the journey taken.