This is the 3783rd most frequent Polish word.
najwyższy
"Najwyższy" means "the highest" or "supreme" in English.
najwyższy is used as a superlative adjective to describe the tallest among a group.
To jest najwyższy budynek w mieście.
This is the tallest building in the city.
najwyższy is used metaphorically to indicate the utmost importance or priority.
Naszym najwyższym priorytetem jest bezpieczeństwo.
Our highest priority is safety.
najwyższy is used idiomatically to express the urgency in a situation.