This is the 4613th most frequent Polish word.
mierzy
"Measures."
Here, 'mierzy' refers to the action of John measuring his own height, indicating an activity of determining a dimension or size.
Jan mierzy swój wzrost.
John measures his height.
In this sentence, 'mierzy' describes an architect carrying out the action of measuring a wall's length, related to professional or task-oriented precision.
Architekt mierzy długość ściany.
The architect measures the length of the wall.
In this context, 'mierzy' signifies assessing or keeping track of time, focusing on duration rather than physical dimensions.