noun
top group; leading group
Refers to the highest-ranked or most prominent group in a competition, ranking, or category.
彼はトップグループの選手だ。
He is a top-group athlete.
この会社は業界のトップグループに入る。
This company is in the top group of the industry.
Variant with interpunct, sometimes used for clarity.
Wasei-eigo (Japanese-made English) from 'top' + 'group'.