This is the 4104th most frequent Japanese word.
ポロシャツ
Polo shirt.
Here, "ポロシャツ" refers to a specific garment, a polo shirt, purchased by the speaker.
昨日、新しいポロシャツを買いました。
Yesterday, I bought a new polo shirt.
In this context, "ポロシャツ" is a generic term representing the type of clothing.
ポロシャツはカジュアルな服装の一つです。
A polo shirt is one of the casual clothing items.
The word "ポロシャツ" is used to define a uniform piece, emphasizing its color and role as company attire.