This is the 7817th most frequent Polish word.
mcilroy
The word "mcilroy" is not a Polish word; it is a surname of Scottish origin.
Here, 'Mcilroy' is used as a proper noun, specifically the name of a well-known golf player.
Mcilroy wygrał turniej golfowy.
Mcilroy won the golf tournament.
In this sentence, 'Mcilroy' again serves as a proper noun referring to the individual.
Czy Mcilroy będzie uczestniczył w przyszłorocznych zawodach?
Will Mcilroy participate in next year's competition?
This usage of 'Mcilroy' refers to the person, serving as the subject of a descriptive commentary.