This is the 4931st most frequent Polish word.
planem
"Planem" in Polish means "by plane" or "with a plane" (instrumental form of "samolot").
In this sentence, 'planem' is used to refer to a mode of transportation, specifically 'plane'.
Podróżuję planem do innych miast.
I travel by plane to other cities.
Here, 'planem' denotes a blueprint or a detailed schematic, 'plan'.
Rysuję planem przybliżony kształt budynku.
I draw a rough shape of the building using a plan.
In this sentence, 'planem' refers to a structured course of action or schedule, 'the plan'.