noun
Used in contexts such as sports, meditation, or work to refer to focused mental effort. Often interchangeable with 集中 (しゅうちゅう), but carries a slightly more technical or foreign nuance.
試合前のコンセントレーションが大切だ。
Concentration before the match is important.
彼は深いコンセントレーションに入った。
He entered a state of deep concentration.