This is the 15080th most frequent Polish word.
runęła
"Runęła" means "collapsed" or "fell down."
In this sentence, 'runęła' is used to describe the sudden falling or collapsing of a structure in response to external forces.
Wieża runęła pod wpływem silnego wiatru.
The tower collapsed under the influence of strong wind.
Here, 'runęła' metaphorically expresses the downfall or disintegration of an abstract concept, specifically self-confidence.
Po tych wydarzeniach, jego pewność siebie runęła.
After these events, his self-confidence crumbled.
In this example, 'runął' conveys the physical collapse and destruction of a building.