kierujacy
Kierujący (kierujący, feminine kierująca, neuter kierujące) is a Polish present participle derived from the verb kierować, meaning to direct or to steer. In contemporary usage it functions as a noun that designates a person who directs, steers, or controls something. The most common sense in everyday and formal language is as a synonym for the person operating a vehicle when the emphasis is on control or responsibility, for example kierujący pojazdem. However, kierujący is not limited to driving; it can refer to anyone who directs operations, manages traffic, or controls machinery.
Spelling and form: correct Polish orthography uses kierujący with diacritics; non-diacritic variants such as kierujacy may
Usage in different domains: in legal and official texts kierujący is commonly used to denote the person