This is the 16802nd most frequent Polish word.
wyjdą
"Wyjdą" means "they will go out" or "they will exit."
The word 'wyjdą' is used here as a verb meaning 'will leave', referring to people departing or stepping out.
Jeśli teraz wyjdą, zdążą na autobus.
If they leave now, they will catch the bus.
In this sentence, 'wyjdą' means 'will go out', denoting the action of leaving for a walk.
Wyjdą na spacer wieczorem, jeśli pogoda się poprawi.
They will go out for a walk in the evening if the weather improves.
Here, 'wyjdą' is used metaphorically to mean 'come to light, become evident'.